FITS 2005 GMC Sierra
Timbren Front Suspension Enhancement System

Timbren Front Suspension Enhancement System

Item # TGMFK25S

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Vehicle Suspension
Confirmed to Fit
2005 GMC Sierra

1500 HD

1500 LD

2500 HD

3500 - Cab and Chassis

3500 - Pickup

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TGMFK25S - Heavy Duty Timbren Front Axle Suspension Enhancement
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  • Timbren
  • Jounce-Style Springs
  • Heavy Duty
  • Front Axle Suspension Enhancement
The best technical support and full vehicle suspension installation instructions. Lowest price Sierra vehicle suspension guarantee and expert service. GMC Sierra, 2005 vehicle suspension by Timbren are available from etrailer.com. For expert service call 800-298-8924 to order your Timbren Front Suspension Enhancement System part number TGMFK25S, or order online at etrailer.com.


  • All Info
  • Reviews (1534)
  • Q & A (28)
  • Videos (1)
  • Photos
  • Why etrailer?

2005 GMC Sierra - Timbren Front Suspension Enhancement System

14,000-lb Capacity. Great for trucks with plows, these front hollow rubber springs help to stabilize and level your GMC Sierra. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.


Features:

  • Improves suspension and handling
    • Prevents body roll with improved weight distribution
    • Stabilizes the GMC Sierra for better handling of heavy loads
  • Adjusts progressively to the road and the load so you always have a smooth, comfortable ride
    • Provides additional support as needed
      • Allows the spring ample movement while at the same time providing cushioning for light loads
      • Increases stability and great performance while cornering, swerving or hauling large loads
  • Takes the brunt of bumps and rough roads
    • Extends the life of your GMC Sierra's suspension
      • Designed to work with a suspension system that is in good working order
  • Requires no air hoses, compressors or manual adjustments


Specs:

  • Includes 2 Aeon hollow rubber springs, GMC Sierra-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required
  • Capacity: 14,000 lbs
    • Do not exceed the GMC Sierra's weight-carrying capacity
  • Designed to work with a suspension system that is in good working order
  • Limited lifetime warranty - satisfaction guarantee


Reduced axle sag with Timbren suspension enhancement

Just like the rear of your GMC Sierra will sag under the weight of a fully loaded bed, the front of your vehicle will sag when under the burden of heavy equipment such as a snowplow. In this case, the front axle is handling not only the weight of the equipment, but also more of the vehicle's weight. Overall GMC Sierra handling - traction, steering, and braking - is negatively affected. But the resistance from Timbren's Suspension Enhancement System works with your factory suspension to keep your vehicle level and improve your driving experience.


Install diagrams of Timbren hollow rubber springs

The Timbren system comes with custom-fit brackets that are bolted onto each frame rail above your front axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down so that the bottom of each spring touches the axle. Because each spring is making constant contact with the axle, it is always working to cushion and support your factory suspension.


Animation of a standard Timbren rubber spring

Timbren Suspension Enhancement Systems are designed to work progressively. When the hollow rubber springs are compressed, the convoluted design causes them to quickly collapse along the folds. Once the folds are compacted, the stacked barrel shape increases resistance, stiffening the suspension and keeping your GMC Sierra level.


Timbren suspension system works to prevent body roll

Each hollow rubber spring works independently to support the driver's-side or passenger's-side of your GMC Sierra. This is helpful when you swerve or make sharp turns. Each spring is activated when it is needed, so body roll is greatly reduced. The independent action also works well when you're carrying off-center loads.

A snowplow mounted to the front of the truck will require extra suspension support for the front axle.

Timbren's Suspension Enhancement System will help raise the front end of your GMC Sierra when you're using heavy equipment like a snowplow. This ensures that your headlight beams will be pointed in the right direction and tire wear will be reduced. If the plow is off-center or has an extension, the springs will automatically compensate for this as well.

An empty truck on a bumpy road without Timbren

Another great feature of the rubber construction is that the springs absorb most of the road shock, creating a smoother, more stable ride overall. Wear and tear on the factory suspension is also lessened because the rubber springs work to prevent bottoming out on rough roads.


Timbren Suspension Enhancement Compared to the Competition

Timbren's Suspension Enhancement Systems are much easier to install than air springs - there are no air hoses to run, no compressors or gauges to hook up, and no manual adjustments to make. The rubber construction makes Timbren's springs more elastic than similar products constructed of microcellular urethane. More elasticity allows for a more comfortable ride because the rubber has more travel.



GMFK25S - Front Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren



TGMFK25S Installation InstructionsInstallation Details TGMFK25S Installation instructions

Video of Timbren Front Suspension Enhancement System


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Timbren Vehicle Suspension - Front Axle Suspension Enhancement - TGMFK25S Review

Today we're going to review part number TGMFK25S. This is the Timbren Front Suspension Enhancement System. This is a custom fit part number, this is designed to fit the Chevrolet and GMC vehicles starting in 1996. What I would recommend since there's many vehicles it will fit on, I would recommend to go to our website and on the Use Our Fit guide and put your year and model vehicle and that will show you if this part will work for your application. This kit will improve your suspension and handling, prevents body roll with improved weight distribution. It does stabilize the vehicle for better handling of heavy loads. It does adjust progressively to road and the load so you always have a smooth comfortable ride and it does provide additional support as needed.

It does allow the spring ample movement while at the same time providing cushioning for light loads. It does increase the stability and gives you great performance while cornering, swerving or hauling large loads. This does take the brunt of the bumps in the rough loads and it does extend the life of your vehicle's suspension. You do have to make sure, though, it is designed to work with a suspension system that is in good working order and this system does not require any air hoses, compressors or manual adjustments. This part includes everything shown here on the table. It includes these two Aeon hollow rubber springs. It includes these specific brackets and the hardware for simple installation.

When you do install these, it comes with a nice set of instructions that are pretty detailed. These will replace the axle bump stops on your frame, there's no drilling required. The capacity on these is 14,000 pounds but you do need to remember you do not exceed the vehicle's weight carrying capacity. Again, as I mentioned earlier, these are designed to work with a suspension system that is in good working order. This does come with a limited lifetime warranty. That should do it for the review of part number TGMFK25S.

These are the Timbren Front Suspension Enhancement System. .


Customer Reviews

Timbren Front Suspension Enhancement System - TGMFK25S

Average Customer Rating:  4.7 out of 5 stars   (1534 Customer Reviews)

14,000-lb Capacity. Great for trucks with plows, these front hollow rubber springs help to stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.

- TGMFK25S

by:


Little bit rougher ride but worth it in Plow holding capability when traveling. It's nice to not have the front end squatting so much. Excellent product will definitely be purchasing again when I get a new truck. 592581



- TGMFK25S

by:


I am impressed with the timkens. Got a 2009 GMC 2500 hd and Western 8.5' v plow. Nose dive was an understatement before. However I put a 2" leveling kit and installed the timkens at the same time. One of them made my truck ride horrible. Probably the leveling kit from the torsion bars being turned in. I do notice tho that empty going over a jarring bump you can feel the timkens hitting hard. But with a plow on the truck it is the way to go. After this winter I'm gonna take them off and put stok back on for the summer. It's one bolt to replace them install was a piece of cake. 592401



- TGMFK25S

by:


Installed this on my 2005 Silverado 2500HD with the 8.1l engine. Easy 1.5 hour install with hand tools. Raised front of truck about 1" with constant contact with rubber. I'm installing a Boss V Snow Plow and a Truck bed Camper ( for Summer) and needed the extra weight capacity without the suspension sag. Ride quality degraded some, but is not objectionable. Ride is OK for a truck. This is a better solution than changing to stiffer torsion bars or cranking up the stock bars for my application. 589250



- TGMFK25S

by:


They fit well, no notable change in ride quality unloaded. Im happy with them so far. 463533



- TGMFK25S

by:

Chevrolet Silverado 2500


Easy to install, keeps the front end up with the snow plow on our 2500 Silverado 456597



- TGMFK25S

by:


Works great on my 2005 2500hd towing my 42 ft fifth wheel. Have them on the back also. No suspension sag and no sway,very impressed. Fit was correct easy install. Just as good as air bags. 455005



- TGMFK25S

by:


Works great on my 2005 2500hd towing my 42 ft fifth wheel. Have them on the back also. No suspension sag and no sway,very impressed. Fit was correct easy install. Just as good as air bags. 454652



- TGMFK25S

by:

2004 Chevrolet Silverado


Easy to install 396033



- TGMFK25S

by:

2003 Chevrolet Silverado


Only reason I didn't give it a five star is that it is to soon. 333658



- TGMFK25S

by:

2005 GMC Sierra


Love them the are great we use them on our plow trucks they handle the load very well 322538



- TGMFK25S

by:

2006 GMC Sierra


Highly recommend spending the money. My last pickup I bought Sumo Spring rubber stops and they seemed squishy to me, where these are hard and hold up very well. Holds my Boss V-XT 8'2" up where it needs to be. Don't go cheap! You'll regret it! 319272



- TGMFK25S

by:

2003 Chevrolet Silverado


My 03' Chevy Silverado really benefited from the installation of the Timbren bushings. Shipping was fast the instructions from E-trailer were very helpful and made it easy to DIY. The front end of the truck seemed to be sagging especially when the plow was raised even with 600 lbs of ballast. The front end was raised up about 3/4" after the install and the ride quality is greatly improved overall. I cannot hardly wait to try them with the plow. I would highly recommend Timbren bushings to anybody with a higher mileage vehicle like mine 160,000. 302726


Comments

These will be going on every truck I buy from now on.

P. M - 10/05/2017

28735

- TGMFK25S

by:

2006 GMC Sierra


Works very well in the front of the truck. Made the truck sit 1" higher. Supports the snow plow well. 277819



- TGMFK25S

by:

1999 Chevrolet Silverado


this is the 3rd replacement of bump stops for my 99 chevy 3/4 HD 4x4. Two were OEM , and one an after market ( lasted a week ! ). I am impressed that the Timbren bump stops are well made and were a direct fit. The truck sits about an inch higher in the front end and best of all the ride is smoother . the truck also has new up graded shocks and the over all condition of the suspension is very sound. the shocks were installed prior to these new bump stops. I would give 5 stars however I am waiting this out to see what the Timbren bump stops are capable of in a year from know. my truck spends most of its time on road not off road . 254821


Comments

I would buy again . these are worth 5 stars.

Gene - 06/01/2017

24483

- TGMFK25S

by:

Chevy 2500HD Silverado


Timbren SES heavy duty jounce bumpers dramatically improved the ride of my Chevy 2500HD and it drops only a very small amount when I hoist the plow. Less than 1/2" dropbin ride height with the plow raised. Yet the riee is not harsh. Excellent product, wish I knew about it years ago. 165956



- TGMFK25S

by:


should have bought this a long time ago really help me out.works great 165401



- TGMFK25S

by:


I like that when I put my plow on the truck the timbren with stands the load and handles great thanks 99190



- TDVRRT

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I have a 2013 Chrysler Town &Country that I load down with a roof and a rear rack storage. I was having issues with the rear sitting so low that I couldn't see the top of the rear tires and would occasionally bottom out. Now that these Timbrins have been installed I lose about 3/4 of an inch ride height compared to the 3+ inches I was losing before. It's still a little too early to determine if I'm completely satisfied, so I'll try to provide an update after traveling from Houston to Michigan and back during the holidays. The ride is definitely more firm(when loaded down with the extra storage), which is to be expected, but wouldn't call it jarring. The wife and kids will let me know soon enough. ;) One thing to note about the installation video linked by etrailer in regards to these Chrysler/Dodge minivans... I don't have access to a full vehicle lift, so I had to use a coil spring compressor to pull the coil springs, which is not a big deal because they can be rented(for free with some places) from your local auto parts store. But, they don't just pull out like the video suggests. Also, as others have recommended, disconnect the shock from the bottom, NOT the top. I'm not a mechanic, but not a complete novice. I experienced a few hiccups from following the etrailer video, but was able to work them out with the right tools and patience. 459059


Comments

One year update: We have taken two lengthy1000+ mile road trips in our 2013 Chrysler Town & Country with roof and rear rack storage and all we can say is the Timbren suspension upgrade is simply awesome. Our van no longer sags in the rear when loaded down and the suspension changes are practically unnoticed, especially when the van is not loaded at all. I highly recommend this suspension upgrade to anyone who plans on towing or loading up their Town & Country with extra weight.

Jason J - 12/10/2018

46563

- TDR2500D

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Best thing I ever bought for RVing. Before, just hitting a bump in the road would start my truck/camper combo rocking. Now, one rock then steady! My wife is no longer afraid we will careen off the road out of control. 452990


Comments

STILL GREAT! Been on 2 road trips totaling 35,000 miles, to include The Dalton Highway to the North Slope and Deadhorse and across the plains states at 90 MPH and they have worked beautifully. Best investment I have made for my truck. P.S. Have a truck camper so all the weight is on the truck, not just the tongue weight.

John - 11/21/2018

45919

- TDF25004E

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Was really worried how well these would work compared to a leveling kit for my truck. I have a 2017 Ram 2500 crew cab, 6.4. I put a western wide out on it to plow with and was really disappointed with the truck springs as I had almost 3" of squat. So I was in a toss up, leveling kit or these. I bought the timbren just to try cause I have never used them before, all I can say is I'm very happy with my purchase, now I only get about 1/4-1/2" of squat and the truck rides awesome with the plow on. With the plow off it is noticeably a bumpier ride but I wanted the front end stuffed for plowing and got exactly what I was looking for. Should also mention I had 900lbs ballast in the bed before the install, I only have 420lbs now. World of difference! 583814



- TGMRH2

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Fit like a glove. Very good rear support 576063



- TFR250SDJ

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


You guys are great to work with. Thanks again 573793



- TDVR05096

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


As advertised was easy to install. Works great. 573079



- TFRTT350F

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


It arrived in 3 days and only took one hour to install. This is my second set. Put the first set on a 2009 Dodge Ram 1500 & this set went on a 2016 Ford F-250 Super Duty Diesel....very satisfied, 498699



- TFR350SDF

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Awesome fantastic service 501012



- TGMRG25C

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Rough ride when not loaded but no more sag in the rear. Does the job! 574802



- TFRTT1504E

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Great Product. Easy install 399499



- TDR1500DQ

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Great product 576580



- TGMRCK25D

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I installed them on my truck yesterday. Very simple to put in. Won't be able to see how well they work until I hook up our 5th wheel next for a trip. 576508



- TGMFK35C

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Fast shipping fit perfect worked as exp ected 575535



- TDR1500DQ

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Great Product at a great price! Can't even tell we are towing a 36 foot long trailer. 573097



- TFRTT350F

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Arrived on time. Installation went well. Pleased with how well the Timbrens leveled my camper. Still very good ride when camper not on my 2015 Ford F350 Super Duty dually. Very satisfied with this product. 424086



- TGMRG25C

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


You Guys are outstanding!.... Keep carrying All the right parts and accessories for RV's and POV's. It's like a One Stop Shop for all my needs for camping and travel. This product is great, not only for my Dodge, But I had to install this on my Chevy also. I'm very happy to have purchased this product. By the way pics will follow soon, in the middle of a move... Thanks Guys 561648



- TFER35092B

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Still happy with both timbren air spring units I’ve purchased ,to be honest really haven’t thought about them ,they have been such a seamless part of the trucks that they haven’t come to mind.They just do what they do well ! 570054



- TFRTT1504E

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Installation was easy- did not require raising the truck as with correct socket extensions it’s doable. Would be nice if components had better paint adhesion. Also the u-bolts/brackets did not have any paint at all!! 572267



- TTORTUN4

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Very easy to install with great instructions and video support right on the website. They took me 30 minutes to install and you do not have to remove tires. Just remove the U Bolts and put them on. Very easy and all needed parts are in the box! 403762



- TTORSEQ

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Works well for intended use. 553868



- TTORTUN4

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Very easy to install. Works great. Didn’t seem to affect my ride. Levels up my rig when I put the camper on or hook up to a trailer or piece of equipment. Love it and would highly recommend it. 570299


Comments

Timbren suspension systems wont have a whole lot of effect on vehicle ride except during cornering or when the vehicle is under load. Once a load is applied to the suspension, either from cargo or from the tongue or pin weight of a trailer, the suspension will compress enough for the Timbren Aeon springs to contact the axle.

-- Mike L - 10/01/2018

44202

- TFR1504E

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Rear suspension pads work great. Ride is still like factory with no load unless driving over a big bump at high speed. When towing a 32 foot travel trailer the sag in back end of truck is greatly reduced with a lot more control. Easy to install. The downside is when truck is full with passengers and not towing anything the added weight makes the ride rougher. Shipped on time. 575558



- TGMFK10R

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Great quality products at a great price. Fast shipping and delivery. Easy installation with the included instructIon sheets. The Timbren SES provides a much smoother ride with regular shocks than the previous setup of coil over shocks alone. The 7 and 4 pole trailer connector provides the flexibilty to pull my teardrop trailer which has brakes and a 7-way plug or my utility trailer which has a flat 4-way plug without adapters. Fantastic customer service. Etrailer.com has a great selection of products for your vehicle and traveling needs. 570293



- TFR1525HD

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


TOTALLY AWESOME PRODUCT.....Though I wished I had them when we trailered the hot rod out to New Hampshire last month. We received this item late as it was on back order for far too long. I did get a chance though to put the levelers through their paces when using our 18' lo-boy to haul large limbs, branches and other brush to compost site. The truck did NOT flinch and inch downward as it did WITHOUT the levelers. I liked too that the installation was basically pretty easy. I highly suggest going this way and leaving the air bags for the big truckers. Don't have to fuss with filling or deflating bags or dealing with leaky bags. This is a presto zippo installation and you can play "immediately". 550307



- TFR250SDG

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


After one year the Timbren Rear Suspension Enhancement System has performed as advertised. My 2016 F-250 does NOT squat with the fifth wheel trailer attached and the ride quality with trailer attached has also improved. Springs arrived quickly and took about 30-40 minutes to install. Excellent Product for towing!!! 449153


Comments

Product is in the third year of service and has performed flawlessly. Just a warning to everyone CHECK THE BOLTS!!!! I found one of them loose and vibrating while doing a pre-trip check!!

Patrick G - 11/05/2018

45403

- TFR1504E

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Product works great, 100% better when I’m towing. I have absolutely no complaints about the product. The only issue I had was the package was short 2 washers that the instructions called for. I didn’t contact the company, because I have Spare washers and it was a lot easier to use what I have versus contacting them. 574500



- TDR2500D

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Took a while to figure out the best way to install and then went fairly easy, Dodge doesn't give you the most room after they put the truck all together. The reviews and results were about the same, Truck ride stiffer but more secure with trailers or empty on rough roads. I have a flatbed with hydraulic bale forks that I use with 1200>1500 hay bales, the flat bed empty weighs in around 1000# and now performs without any roll on uneven ground, when loaded. Good product and well designed and didn't change the stance of the truck. 447315


Comments

l think I would elect to try the inflatable air bags for use at different pressures to raise the bed to different angles for the loads that are different. Empty it is comfortable as the bed itself is heavier than most, that being said, at night I get complaints on the headlight position in the low beam even empty. Worth thinking about, any suggestions?

SKS - 10/31/2018

45240

I think that the airbags would be a great idea for your 2015 Ram 2500, with your flatbed and bale loader configuration I recommend the # F2706
Firestone Ride-Rite Red Label Extreme Duty Air Helper Springs - Rear Axle
$450.95
. THis installs in the same location as the factory jounce springs, so you will have to remove your Timbrens to install the new airbag system. I have included a link to the part, instructions, and a video for your reference.

-- Rachael H - 10/31/2018


- TTORSEQ

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


This is regarding the FRONT installation. Which is everything I'd hoped for. The truck still rides great but no longer bottoms out over any pebble in the road. The front end no longer heals over in turns. I wanted to install a rear kit but it arrived as a mis matched box of parts. To be continued. 231435



- TGMRCK15S

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Great product theses are my second set put them on my 2011 Chevy 1500 just put a set on my 2018 1500 they work great I have a fifth wheel camper 568503



- TTORTUN4

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Came on time easy to install and works like a charm. 406228


Comments

great! no worries as long as your truck can handle the haul load makes for a rougher ride. But dont abuse them.

Beverly B - 07/15/2018

40951

- TDR3500CA

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


This product solved my problem and performed as expected. I tow a 5th wheel RV that weighs around 18,000 LBS. 480684



- TFR1504E

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


got the product when stated , went on simple enough but used google to really see how things went together. Timbren doesn't give very good instructions with their product wish they would put diagram so as to be able to see how brackets go, but happy so far haven't put load on the truck yet that's coming up with a trip in august with my 30ft camper and truck loaded for trip guess will come back and let you know how the product works after the trip , but etrailer delivered when they said they would thanks will keep you in mind for future purchases. 544811


Comments

If you click the provided link, you an see a video of the Timbren Aeon spring being installed on a 2016 Ford F-150.

-- Mike L - 07/24/2018

41429

- TTOFTUN4

by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Work great with a little extra weight on the front end. Easy to install... out with the old in with the new. I have to say that e-trailer has the best customer service I have ever experienced buying on line. From the time I ordered they kept me updated on the status and that made the experiance worth it. 69026


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Ask the Experts about this Timbren Vehicle Suspension


  • Will The Timbren Rear Suspension Work on the Rear of a 2001 Ford F-53 Class A Motor Home
  • Timbren does offer a suspension kit for the rear of your 2001 Ford F-53 Class A Motor Home. It is the Timbren Rear Suspension Enhancement System, part # TFRF53A. It will install in place of the bump stops on the vehicle. They are designed to work with a suspension system that is in good working order. They are not designed to be used as the main suspension system on your vehicle. It works by being installed on the vehicles frame rail one inch above the rear axle. The one inch clearance...
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  • Rear-End Sag in 2004 Silverado 2500 4X4 Crewcab With Weight Distribution System Installed
  • The best way to fix rear-end sag when towing your 7500-lb trailer with your truck is to use a weight distribution (WD) system. Rear axle suspension helper kits, such as Timbren jounce springs or air bag kits, are better for times when you are carrying a heavy cargo load in the truck bed. These will not give you the same benefits as a properly-tuned WD system when towing a trailer. In fact, if jounce springs or air bags are used along with WD, then they can sometimes interfere with each...
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  • Timbren Front Axle Suspension Kit # TGMFK25S for 2006 GMC Sierra 1500 SLT
  • The Timbren front-axle jounce spring suspension kit you referenced, part # TGMFK25S, is a fit for both 2WD and 4WD versions of the 2004 Sierra 1500 SLT. These bolt-on without any drilling required (using included hardware) and replace the factory bump stops now on your truck. These and all other suspension enhancement products we offer are designed for use in vehicles whose suspension system is in good order. They are not intended to be an alternative to replacing a worn or damaged suspension....
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  • Recommended Front Suspension Enhancement for 2007 Chevy 2500 with Snow Plow
  • For your heavy snowplow, I recommend the Timbren Front Suspension Enhancement System # TGMFK25S over the Air Lift AirCell Custom Helper Springs Kit - Front Axle # AL52212. The Timbren Aeon Rubber springs are simply stronger and they work in the same way as the helper springs, yet offer more support on the front end, so that first inch gets support.
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  • Will Timbren Suspension Enhancement System Allow 2006 Chevrolet Truck To Sit Higher w/ Plow
  • The Timbren Suspension Enhancement System, part # TGMFK25S, will prevent the front end of your 2006 Chevrolet Silverado truck from sagging so low when a plow is mounted to the front of the truck. This system is designed to work with suspensions that are in good working order. I have linked and FAQ and instructions for the Timbren Suspension Enhancement System, part # TGMFK25S. I have also linked a video installation of another model of the Timbren Suspension System, on a different vehicle...
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  • Front Suspension Enhancement Recommendation for 2006 GMC Sierra 3500
  • The Timbren kit part # TGMFK25S that you referenced is a confirmed fit for your 2006 GMC Sierra 3500 but it's for severe duty applications so for you it would be very harsh. It would give you the support you want but at the cost of a very harsh ride quality. A better option would be the Air Lift AirCell part # AL52212 which gives you the support you would need but isn't as stiff so it wouldn't be nearly as harsh riding. This spring is 3.15 inches tall. There is also a small wedge as...
    view full answer...

  • Is there a 12-Volt Accessory Circuit on the 7-way of a 2011 Ford F53 RV
  • Yes, there is a 12 volt power source on the 7-way that is on your 2011 Ford F-53 RV. It will be on the 11:00 position of the connector as you look at the front of it. Check out the picture I attached that has a picture with all of the terminals of a 7-way labeled with their functions. You might want to test for voltage on this circuit with a Circuit Tester # 3808 as well just to be sure. I also attached an FAQ article on trailer wiring that you might find informative.
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  • Rear Suspension Enhancement Recommendation for 2003 GMC Sierra with Quadrasteer
  • I spoke with my contact at Firestone about whether or not the Ride-Rite Air Helper Springs, # F2190, will fit your 2003 GMC Sierra with Quadrasteer. He stated that none of the Ride-Rite kits would work on your specific vehicle. But not to worry, there is another option. I then spoke with my contact at Timbren, another maker of suspension kits. He stated that there was a kit available for your truck. Take a look at Timbren Rear Suspension Enhancement System, # TGMFK25S. These are an...
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  • Size of the Bolts that Come with the Timbren Suspension Enhancement System TGMFK25S
  • I checked with Timbren and the bolts that come with the Timbren part # TGMFK25S that you referenced are M10x1.5X30.
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  • Timbren Suspension Kits for 2000 Chevy Silverado 1500
  • We have both front axle and rear axle Timbren rubber spring suspension enhancement kits for your 2000 Chevy Silverado 1500 that are displayed on the linked page. You can also see other kit options including air bags. For a rear axle Timbren kit you can use # TGMRCK15S which fits both 2WD and 4WD models. If you are interested in a front axle kit too, in case you use a snowplow for example, you can use Timbren kit # TGMFK25S for 2WD or kit # TGMFK15A for 4WD (if the truck is a 2-door model).
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  • Recommended Front Suspension Enhancement for 2002 Chevy Suburban 2WD 1500
  • For the front suspension of your 2002 Suburban, I'd recommend the Timbren Aeon Springs, part # TGMFK25S. Installation is straightforward. You'd remove existing bump stops, and use the hardware and existing holes to instal the rubber Aeon spring. The springs get progressively stiffer as more weight is added to them, they typically come into play when a plow or some other very heavy piece of equipment is installed on the front of the vehicle. I'll link you to the installation instructions.
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  • Suspension Enhancement System Recommendation for 2003 GMC Yukon 2 Wheel Drive
  • When it comes to a suspension enhancement system for your 2 wheel drive 2003 GMC Yukon, you will want to go with the Timbren # TGMFK25S. This system uses hollow rubber springs to absorb the brunt of the force on the front of your vehicle which helps to reduce sag and sway for better handling, traction, and a smoother ride. Part # TGMFK25S, for 2 wheel drive, and part # TGMFK15A, for 4 wheel drive, differ in design and installation. The 2 wheel drive version is a bolt-on kit where as...
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  • Recommended Suspension Enhancement Kits for 2001 Suburban 2500 with AutoRide Leveling System
  • The AutoRide self-leveling and damping suspension system in your 2001 Suburban 2500 uses various sensors in the vehicle to control a compressor pump that continuously varies shock damping while driving. This system cannot be defeated and aftermarket air springs like the Firestone Ride-Rite cannot be installed on the vehicle according to my contact at Firestone. However, you can install a set of rubber jounce spring such as the Timbren front-axle kit # TGMFK25S and rear-axle kit # TGMRSB4S....
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  • Rubber Jounce Spring Suspension Kit for 2006 Chevrolet 3500 2WD Flat Bed Work Truck
  • If you want a suspension helper spring kit that avoids the complication of air springs, then I suggest a rubber jounce spring kit from Timbren. We offer both front- and rear-axle kits for your 2006 Silverado 3500 2WD flat bed work truck. The rear axle kit I recommend is the Timbren # TGMRTT35C which is intended for heavy-duty vehicles. This is a bolt-on kit that requires no drilling. If you want a front-axle kit I suggest Timbren # TGMFK25S, also a no-drill install. The linked article...
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  • Timbren Recommendation for 2008 Chevy Silverado 3500HD Towing Heavy Fifth Wheel
  • The Timbren system I would recommend recommend would be the part # TGMRCK35S. It's the lighter duty of the two kits but the heavier duty part # TGMFK25S but it's going to provide a very stiff ride. The # TGMRTT35S still provides the 8,600 lbs of support which will work great. The HD is really needed only in very extreme situations like tow trucks.
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  • Suspension Enhancement Recommendation for 2002 GMC Sierra with Quadrasteer
  • I spoke with my contact at Firestone about whether or not the Ride-Rite Air Helper Springs, # F2190, will fit your 2003 GMC Sierra with Quadrasteer. He stated that none of the Ride-Rite kits would work on your specific vehicle. But not to worry, there is another option. I then spoke with my contact at Timbren, another maker of suspension kits. He stated that there was a kit available for your truck. Take a look at Timbren Rear Suspension Enhancement System, # TGMFK25S. These are an easy...
    view full answer...

  • Timbren Rear Suspension Enhancement For a 1999 Chevrolet 3500 2WD Dually
  • The Timbren Suspension Enhancement Springs, # TGMFK25S, that you referenced will fit your 1999 Chevrolet 3500 2WD dually, but these springs were designed for service vehicles such as tow trucks. Keep in mind, these springs are designed for the front axle, not the rear. It would be better to use Timbren springs on your rear axle when carrying your camper. For your truck, I recommend the Timbren Rear Suspension Enhancement Springs, # TGMRCK35. Adding a set of Timbren springs to your truck...
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  • Recommended Suspension Enhancement for 2002 GMC Sierra 2500HD With Snow Plow
  • For your 2002 GMC Sierra 2500HD, I recommend the Timbren Front Suspension Enhancement System # TGMFK25S to help prevent the sag you are experiencing when the snow plow is attached. These springs have a 14,000 lb capacity and are going to do a great job of providing you with the support you need on the front of your Sierra. The Timbren system will help bear the brunt of the load when your plow is attached so you can stay level. They are also remarkably well-reviewed by our customers who...
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  • Spacer Recommendation for a 2006 Chevy 2500HD with a 2 in Lift Installing Timbrens
  • What you would want to use is a Timbren Spacer for Raised vehicles # A25723-90AH00. This spacer is 1 inch thick so you would want to use two of them since you have a 2 inch lift. For the rear you would want the Timbren Rear Suspension System # TGMRCK25S, for the front you would want the Timbren Front Suspension System # TGMFK25S. Since you will need 2 spacers per Timbren and you plan on putting them on the front and rear axles is looks like you would need a total of 8 spacers.
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  • Suspension Enhancement Kits for 2003 Hummer H2
  • Firestone Level-Rite Air Helper Springs and Shock Absorber Kit F1003 does NOT fit your 2003 Hummer H2 but all suspension enhancement products for this vehicle can be seen on the linked page. The front axle kit we have comes from Timbren and it a set of rubber jounce springs designed to support your front suspension when it is under load, such as when using a snow plow on the vehicle, kit # TGMFK25S. This no-drill kits includes rubber springs that provide progressive resistance when under...
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  • Front Timbren Kit Availability for a 2001 Chevy Suburban 4x4
  • The part # TGMFK15A that you referenced will fit a 2001 Chevy Suburban 1500 4x4. If instead you have a 2500 model you would want the part # TGMFK25S. By nature these Timbren kits will not stiffen up the front suspension unless you have a decent load on the front of the truck. Unloaded you shouldn't notice them installed.
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  • Timbren Suspension Kits for 2004 Chevrolet Tahoe 2WD
  • The jounce spring kit recommended for the front axle of your 2004 Chevrolet Tahoe 2WD is part # TGMFK25S. The kit you referenced, part # TGMFK15A, fits the front axle of the 4WD version that does not have the police package. All front and rear suspension enhancement kits for your 2WD Tahoe, including jounce springs, air bag kits and coil helper springs, are shown on the linked page.
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  • 2004 GMC Yukon Timbren Suspension Kit Recommendation for Front and Rear Axle
  • For your 2004 GMC Yukon XL we have the Timbren suspension kit part # TGMFK25S which fits the front suspension and then the part # TGMRSB4S which fits the rear. Both of these kits act like bump stops except are much larger to make contact sooner than the standard bump stop so that they can provide additional suspension support.
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  • Suspension Enhancement Recommendation for a 2000 GMC Truck that Acts and Anti-Sway As Well
  • We have the perfect product for you. The SuperSprings helper springs part # SSA13 will give your rear suspension 5,000 total lbs of support and will greatly reduce the amount of sway on your truck. A coworker of mine installed these on his vehicle and said that along with the suspension support he was surprised by how well these worked as an anti-sway device.
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  • Best Brake Controller, Suspension Enhancement, and WD System for a 2004 GMC Yukon Towing 7K Trailer
  • It looks like your 2004 GMC Yukon Denali has a towing weight capacity of 8,000 lbs. You will want to verify this in your owner's manual, but if this is the case and your loaded trailer weighs 7K then you should be good to go. If the 7K weight is without the trailer loaded then this could get a bit tricky and you will be pushing the weight limits of your vehicle. Adding a brake controller, weight distribution (WD), and some suspension enhancement will definitely help to make your towing...
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  • Is Rear Timbren Suspension Enhancement System Available for 2004 Mitsubishi Montero
  • I spoke with my contact at Timbren and the Rear Suspension Enhancement System for your 2004 Mitsubishi Montero is part # TGMFK25S. This system eliminates suspension sag, cushions road shock, reduces sway, and improves roll stability.
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  • Front-Mounted Hitch Receiver for 1999 Chevrolet Silverado 1500
  • Draw-Tite front-mount hitch # 65028 fits the 2500 series pickups for year 1999, but for your 1500 series you'll use Draw-Tite's front-mount hitch # 65023. If you prefer a no-drill installation then instead you can use Curt's # 31302. These are the two options for your truck. If you'll be using the hitch to support a heavy load such as a snowplow or cargo carrier, you might want to consider some front-end suspension support. Timbren jounce spring kit # TGMFK25S works on 2WD models and...
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  • Suspension Enhancement Recommendation for 2004 Chevy Tahoe
  • Timbrens are going to be what I would recommend for your 2004 Chevy Tahoe. They are better suited for heavier duty applications like what you have so for that the # TGMRYS4 would be what you would want for your 2004 Chevy Tahoe. I attached an install video for you to check out as well. For the front you would want the Timbren kit part # TGMFK25S.
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Info for this part was:

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Updated by:
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