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Timbren Rear Suspension Enhancement System

Timbren Rear Suspension Enhancement System

Item # TGMRTT35S

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Retail:$373.22

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TGMRTT35S - Jounce-Style Springs Timbren Vehicle Suspension
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  • Timbren
  • Jounce-Style Springs
  • Extra Heavy Duty
  • Rear Axle Suspension Enhancement
8,000-lb Capacity. These hollow rubber springs sit above the rear axle to help 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. Lowest Prices for the best vehicle suspension from Timbren. Timbren Rear Suspension Enhancement System part number TGMRTT35S can be ordered online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (1740)
  • Q & A (9)
  • Photos
  • Why etrailer?

Timbren Vehicle Suspension - TGMRTT35S

8,000-lb Capacity. These hollow rubber springs sit above the rear axle to help 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.


Features:

  • Improves suspension, handling and safety
  • Provides additional support as needed so you always have a smooth, comfortable ride
    • Allows the leaf spring ample movement while cushioning light loads
      • Does not affect the empty ride of the vehicle
    • Becomes more rigid as more weight is added
      • Increases stability - providing great performance while hauling heavy loads
      • Reduces vehicle sag
  • Works independently - side-to-side
    • Helps compensate for off-center loads
    • Reduces body roll when swerving and turning corners
  • Acts as shock absorbers, taking the brunt of bumps and rough roads
    • Extends the life of your vehicle's suspension


Specs:

  • Includes 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required
  • Capacity: 8,000 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • Designed to work with a suspension system that is in good working order
  • Limited lifetime warranty - satisfaction guarantee


An example of sag on a truck's rear axle under a heavy load. The Timbren Suspension Enhancement System levels the vehicle.

Whether you're hauling heavy loads in the cargo area or by pulling a trailer, you will often see the rear sag while the front end rises. In these cases, the rear axle is handling not only the weight of the cargo, but more of the truck's weight, as well. Because less weight is on the front axle, the front tires are making less contact with the road. Overall 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.


Diagram of the Timbren spring installed

The Timbren system has a custom-fit bracket that will be bolted onto each frame rail above the rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the spring sits, one inch above the axle. The inch of clearance allows the existing factory suspension to operate normally under light loads and standard terrain, ensuring the smooth, comfortable ride that you are used to.


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 the truck level.


Timbren suspension system works to prevent body roll

Each hollow rubber spring works independently to support the driver's or passenger's side of your vehicle. 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 are hauling off-center loads.


An example of a trailers swaying

Because the vehicle handles better with the springs, less turbulence will be passed along to the trailer, and this helps to keep the trailer in line. Your driving comfort is further enhanced if the trailer does begin to sway (from a gust of wind or a passing semi), because the movement from the trailer is not transferred to the truck. This also works to make the sway subside more quickly.


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.


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. And more elasticity allows for a more comfortable ride because the rubber has more travel.



GMRTT35S - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren



TGMRTT35S Installation InstructionsInstallation Details TGMRTT35S Installation instructions

This Product Fits The Following Vehicles

2001 - 2006 GMC Sierra 1500 HD

2007 - 2007 GMC Sierra Classic 1500 HD

2001 - 2006 Chevrolet Silverado 1500 HD

2007 - 2007 Chevrolet Silverado Classic 1500 HD

2008 - 2010 GMC Sierra 2500

2007 - 2007 GMC Sierra New Body 2500

2008 - 2010 Chevrolet Silverado 2500

2007 - 2007 Chevrolet Silverado New Body 2500

2001 - 2006 GMC Sierra 2500 HD

2007 - 2007 GMC Sierra Classic 2500 HD

2001 - 2006 Chevrolet Silverado 2500 HD

2007 - 2007 Chevrolet Silverado Classic 2500 HD

2004 - 2010 GMC Sierra 3500 - Cab and Chassis

2007 - 2007 GMC Sierra Classic 3500 - Cab and Chassis

2007 - 2007 GMC Sierra New Body 3500 - Cab and Chassis

2004 - 2010 Chevrolet Silverado 3500 - Cab and Chassis

2007 - 2007 Chevrolet Silverado Classic 3500 - Cab and Chassis

2007 - 2007 Chevrolet Silverado New Body 3500 - Cab and Chassis

2001 - 2010 GMC Sierra 3500 - Pickup

2007 - 2007 GMC Sierra Classic 3500 - Pickup

2007 - 2007 GMC Sierra New Body 3500 - Pickup

2001 - 2010 Chevrolet Silverado 3500 - Pickup

2007 - 2007 Chevrolet Silverado Classic 3500 - Pickup

2007 - 2007 Chevrolet Silverado New Body 3500 - Pickup





Customer Reviews

Timbren Rear Suspension Enhancement System - TGMRTT35S

Average Customer Rating:  4.7 out of 5 stars   (1740 Customer Reviews)

8,000-lb Capacity. These hollow rubber springs sit above the rear axle to help 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.

- TGMRTT35S
by:
2006 Chevrolet Silverado

This review is on a timbren air spring ,I bought this on a Saturday night ,went out of town Monday morning and got in on Thursday afternoon ,wife said the box had arrived Tuesday and put them on this morning on our 2006 Chevy k-3500 ,my guy had the truck in our shop for an oil change and I asked him to put it on, came back 45 min later and he was done with the spring installation and the oil change ! I asked him how hard it was and he said it took him longer to figure out which parts in the kit he needed that the actual install ,said it was about as easy as it gets .Well ,now for the test drive we drove the truck empty ,pretty much as stock ,rode real well.Then we put a Gaylord box that weighed 4506# and drove the truck ,WoW ,What a difference ,truck rode great and handled well ,went over railroad tracks,really handled well and rode great ,I wish I'd have done this years ago ! I highly recommend this product and commend etrailer on their good service and what made me decide to purchase the timbren product was the you-tube video ,after I saw that ,I placed the order ,it looked so simple to install and it went on just like on you-tube 283142


Comments

The air springs have performed flawlessly ,very pleased with the product and performance ! As a matter fact I was recommending this product to a friend the other day.

Bryan L - 12/11/2017

31735

- TGMRTT35S
by:

Thank you kim, cant wait to install in my truck. Have a great holiday. Jim 592430



- TGMRTT35S
by:

Bolted in like a factory part, i didnt require the entra spacers. No change in unloaded ride quality, but with 3000# in the bed the truck felt more stable. Im am very happy with it so far. 463532



- TGMRTT35S
by:
Chevrolet Silverado 2500

So far everything I have purchased from etrailer for my HD 2500 has worked as described. 399243



- TFR1504E
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Solid Product! Yeah it's a stiffer ride when loaded But that's the sacrifice made to have more control of the haul while underway. Definitely recommend to anyone wanting to stay more level with a heavy boat/trailer setup as in my case. Not that install is hard but removal of spare tire before install, may have helped with space if you don't have a lift. 511931


Comments

Still holding up great. Have a friend that went with airbags , and is constantly battling leaks

Cory - 05/22/2019

55674

- TFR350SDJ
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Product was easy to install, 1/2 hr taking my time. Used a open end wrench and floor jack. My 2018 F350 Super Duty Super Cab 4wd no longer plunges over bumps, it has lost all its rear end sway on turning, carries my load much smoother ( loaded all the time ). Even with the load I always carry, the vehicle sits 1” higher in the rear. Prior to the install I was constantly hitting the rubber stops on my factory overload springs. 520123


Comments

Excellent! I have since purchased another set from you for a 2019 F350 diesel. These things are just the ticket! The ride and handling is so much better!

Andrew - 06/10/2019

56402

- TGMRCK25D
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


best thing i bought for pulling my fifth wheel camper. camper handle great while driving and no more bucking up and down in my truck. i believe they are better than airbags 655605



- TGMFK25S
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I ordered timbrens for the front and rear of my chevy 2500. I have a 2000 lb truck camper and I wanted something to help carry the load a little better. I had no idea that my front bump stops had worn away to almost nothing until I installed these. They have worn well and performed well so far. 628835



- TGMRCK25D
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Second time I've ordered from Etrailer. Super happy AGAIN! Install wasn't bad. Went in tight. (Like they should???? ride is awesome. Truck holds strong at 3/4" lower with load. I love it. Package wasn't in sealed and box was busted up. But, rubber. So who cares???? 651388



- TFRTT350F
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


The parts were all there and putting them together was as advertized in the instructions. I can't wait to load up the camper and test drive the 350 super duty. 89353



- TGMRCK25D
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I had bought these timbrens and the weight safe hitch with the 8” drop from etrailer. I was quite please by both products. Installation of the timbrens was very easy, only took 30-40 minutes to change out bump stops in my garage.I hauled a Uhaul trailer with a Jeep over 300 miles, with no issues. The timbrens worked great, no issues with the rife. And I really like the weight safe hitch. I recommend checking out these two products from etrailer. Thanks etrailer. 642864



- TMBFSP35
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I installed these on my 2015 Navion motorhome. It was very easy and only took about an hour. They did more than I expected. The ride is much better and a small shimmy that could be felt in the steering wheel at about 65 is gone. I would recommend these for all MB motorhomes. 460088



- TFR350SDF
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I've had the Timbrens installed for about a year now and can report that they have done exactly what I wanted from them. The install was pretty easy (did it in the driveway using my creeper). My F350 was squatting a bit from the 3000# pin weight and I wanted to reduce that. Unloaded I can't tell they are there unless I hit a pretty big bump and when we're hitched they eliminate most of the squat and the truck is now pretty level when towing. I was thinking about installing air bags but went this route since it was simple and cost less. It's a great product! I've read some complaints about a rough ride when unloaded and I think that's due to not getting the unloaded gap right during installation. Submitting an "Installed" pic. 639141



- TDR3500CA
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Installed on my 2007 Ram 3500 because I wanted basic leveling & stability under the load of my 5th wheel. I didn't want a complicated air bag system. Summer trips in the mountains of MT & the Pacific NW. 3 months of snowbirding throughout southern AZ this winter. Very satisfied, so I just swapped them onto my new 2018 Ram 3500. I didn't let them go with my trade-in. Just what I need, no effect when empty - engaged when I need them. 628560



- TFR250SDG
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I have had Timbrens on previous vehicles, I know how good they work, so I wanted them on my F-250 when I pull my travel trailer. Great products! 482272


Comments

All is well, still performs like new

Raymond - 03/09/2019

50328

- TFERSDLB
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Just finished installing Timbren's in the rear of my Ford E-450 motorhome. The installation was very easy. The hardest part was lifting up the motorhome so the rear tires were off the ground. I always install Timbren's on all my pickup trucks, and have always been extremely happy with them, so when I bought a motorhome, that was one of the first things I did. Because my motorhome came from the manufacturer with helper springs which increased the height or clearance, the Timbren's were not in constant contact, so I purchased and install a 1" spacer (part number A25723-90AH00). Now the Timbren's are in constant contact and will maintain the correct height and not sag under load. I love Timbrens! 643600



- 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



- TDR2500D
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


These do really well for supporting a full load or trailer attached. But if unloaded the will create whiplash if you go over a speed bump or anything that creates the axle to spring up and hit them. 611025



- TFR250SDG
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I like the performance of this product. It has helped tremendously carring a loaded trailer. I haul 15,000 lbs on a regular basis. 490909


Comments

It is still doing great.

Eric - 03/30/2019

51241

- THROD2
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


The product first arrived in a damaged box with one of the washers missing, but ETrailer did resupply that. The hardest part was finding a shop able (needs the right tools to depress coil springs) and willing (a potential liability issue messing with suspension) to replace it for a reasonable cost. Eventually a local tire shop agreed to. This was for a 2014 Honda Odyssey, especially for pulling a pop-up. Took two camping trips last summer, one before and one after installation, and I have been pleased with the added stiffness in the rear suspension. It made about 1 to 1.5 inch of difference in resting position when fully loaded and towing and has helped smooth out bumps and humps in the road - both when towing and not. 589641



- TTORTUN4L
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


The Timbren suspension was delivered on time . The unit was installed using the instructions provided and took about 45 minutes for both sides of the rear axle. I have not put a load on the truck yet to see how it works.There is about 1" of clearance between the rubber timbren stops and the frame of the truck,so it hasn't affected the way the truck handles for now,I'll be able to tell more about it once I hitch my Travel Trailer up.The installation was done on a 2017 Nissan Frontier. 621664



- TFRTT1504E
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Great Product. Easy install 399499



- TFR250SDJ
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


This product seems as described in etrailer catalog and by salesperson. Very easy to install, both sides and clean up 30 minutes (actual install time was about 15-20 minutes). My truck has 100 gal fuel cell and tool box that is pretty full, so I generally have an extra 1200 lbs in bed of truck full time. Looking at truck it sits level instead of rear sitting up a little, not a big deal except headlights aim a little higher and when pulling trailer with skid steer or mini, truck sags an amount that looks overloaded. After installed truck bed height looks close to an unloaded truck. With full fuel cell the truck rests on the Timbren Suspension Enhancement System, I was pleasantly pleased with the ride and look of the truck. The only minor difference is when truck comes to complete stop, there is a slight "jiggle" in truck. Very minor but it is noticeable. I would definitely recommend and purchase again. I can't wait to see how system performs with loaded trailer hooked up. 594996



- TMBFSP35
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


The installation took about a half hour on our 2006 Winnebago View. I did not need to remove the tires, just jacked it up enough to unload the suspension a bit. The upgrades have quieted down the front suspension both reducing hard suspension hits and body lean. The front of the View is definitely more settled. Pros: Simplicity, and ease of install. measurable difference in RV suspension performance. Cons: expensive for what they are. The long bolts used do not inspire confidence. 220089



- TDR3500CA
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Product seems to be high quality and the delivery was fairly quick. Extremely easy for me and my 12 year old son to complete in less than a half hour. Just put them on today so won't know how well they'll work until I put a load on the truck. I had the Timbren's on my 1997 Ford F-250 and they worked great so I'm hoping for the same results. 391227


Comments

So far they have been great we towed our 5th wheel to the east coast from California and they were great.

Eric - 06/10/2018

39573

- TFR250SDG
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


This product has performed exactly as advertised. We pull a fifth wheel rv with a hitch weight of 2300 pounds. After adding the Timbren Rear Suspension System to our Ford F-250, our truck sits perfectly level when hooked up. We feel that it was a much more cost effective way to keep our truck level as opposed to installing an air bag system. 344559


Comments

I still like the suspension product that I purchased from Timbren. It helps keep my vehicle level when we tow our 12,500 lbs fifth wheel RV with a hitch weight of about 2400 lbs, although when I purchased the product we were towing a lighter model. I have been thinking about ordering the heavier duty model you offer to help off set the increase in weight of our new trailer.

Sam H - 02/26/2018

35166

- TFRTT350F
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


They worked great until one of the rubber coils fell off. The housing remained but the rubber coil fell off!!! Not worth the price. I would never buy this again. 483244



- TFR150D
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


The Timbren rear suspension enhancement system works fine. The RV trailer sits level and tows great. 563471



- TFFF53B
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I can’t believe how effective these are on my F53 Ford based motorhome, the before and after is night and day. I would not want to be riding down the road without it. 551279



- TGMRCK15S
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Etrailer shipped very fast! Awesome people to deal with. The install went just as fast! Probably 20 minutes. I used a farm jack on the trailer hitch to bring both rear wheels up enough to have room to work. I put jack stands under the hitch for safety. Didn’t need to remove the wheels and they weren’t off the ground. Removed the old stop and attached the new ones. Simple! Test drove (in the rain) with nothing in the bed and never felt it till I hit a speed bump. Felt a little bump. I’ll be taking my RV out in a week. Looking forward to seeing what it will do for that. This was put on a 2018 GMC 1500 with big tow package. 581466



- TFR250SDE
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Outstanding product at a great price. Delivered very quickly. Unsurpassed comunication 19527



- 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



- TDR2500D
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Took longer to gather up the tools needed, than what it took to install them. Shipping was quick. 456850


Comments

After a year still going strong. I have pulled the 5th wheel about 4K miles with them and no problems.

Bill - 12/03/2018

46355

- TFR1504E
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Night and day difference while towing. This is one of the best additions to my truck. My camper is around 7k pounds. My back end doesn't sag as much and doesn't bounce as ki when towing. Not noticeable when unloaded. I recommend this to everyone e who tows. 613728



- TDR2500CA
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Just what my truck needed to stop the sag when I hook up to my 5th wheel. 510766



- TGMRCK25D
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Very happy with my timbrens and quick shipping. Added these to a 2013 2500HD 4X4. Quick and simple to install. improved ride quality and takes the squat out when pulling a gooseneck trailer. Very happy and would recommend to anyone wanting to improve quality of ride height. 493187



- TDR2500D
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Got 2 replacement keys for spares. They both worked well. Wished they carried the Led type. Easy ordering, just ensure you order the same number as on the key you have. Embossed on the top of the key just below the purple part. 482736



- TGMRCK25D
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I bought Timbrens to install on my 2015 Silverado 2500HD truck, which I use to haul our 5th wheel. I had a set of airbags on my old GMC and they worked well, however, they were a concern when it came to maintenance. I saw a review and recommendation for Timbrens and thought they were a great alternative to having airbags installed. I read the instructions and can see no problems with installing them myself - thereby not only saving in the cost over the airbags, but also not having to pay anyone to install the Timbrens. Everything I have read about them makes me feel very good. I don't see the truck lowering with the 5th wheel attached, but having the Timbrens installed will take away any worries with rough roads. 613453



- TFR1504E
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Great information and tracking ability. Package arrived on time as promised. Installed the kit the next morning, fit perfectly 567633



- TDR1500DS
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Doesn't get any easier for an install. A jack, some soapy water and a couple pieces of 2x4. In about 5 minutes you're done. Took out almost all sag when I dropped my travel trailer on the ball. Great addition to the suspension. 488109



- TFR350SDJ
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Easy install on 2017 Ford F-350. For a keystone Raptor RV with over 3500 Lbs tounge weight 488610



- TGMRCK25D
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I INSTALLED THE TIMBRENS ON 7-5-12 AS PER PREVIOUS REVIEW. I TRIED THEM TODAY PULLING MY 35 FT. 5TH WHEEL.THESE THINGS ARE WORTH EVERY PENNY,VAST IMPROVMENT. THE TRUCK HANDLES BETTER,SITS BETTER,RIDES BETTER UNDER LOAD. GOOD JOB ,ETRAILER 50638



- TMBFSP35
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


This enhancement replaced the OEM for a 2016 (new) Mercedes Sprinter 3500 Class B+ camping chassis. OEM was OK (good enough), but the Timberlin enhancement reduced front end bounce and sway on rough roads significantly -- noticeably. (Rear Timberlin suspension enhancements were installed prior to delivery/acceptance from dealer). The Timberlin shock arrestors are three times larger than OEM. Cost to install by experienced mechanic -- $65 (less than an hour). We're happy with it. (The Sprinter has an OEM rear anti sway bar, it could also use a front anti-sway bar as well when the vehicle is used for long trips.) Having said all that, I favor the Sprinter over other Class C and B+ chassis without these modifications. 297039


Comments

11,000 miles would not drive without both front and rear Timberlin suspension

DEG - 09/21/2017

28351

- TFR250SDG
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


2012 Ford F-250, no overload springs. Loaded 24,000 lbs on a 32' gooseneck. Pickup would squat too far. Installed Timbrem rear suspension enhancement and pickup runs almost level and rides great!! All I needed to handle the load. Great product!! Would recommend to anyone looking for overload springs. Installed in 30 minutes!! 165636


Comments

Still works perfect!! Heavy use during summer. Cant wear them out.

BK - 12/16/2015

16181

- TDR3500CA
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Received my Timbrens very quickly, very well packaged. Installed them is less than 30 minutes. Have yet to hook my rv to the truck, but can see these are going to be really helpful. About 1" to my axle where my OEM bump stops were a good 7" As always etrailer rocks!! Look forward to dealing with these folks when the need arises again. 484817


Comments

Couldnt be happier George. I brag about them to others all the time.

Michael - 03/14/2019

50525
Comments

Still loving my Timbrens!

Michael - 03/19/2019

50733

- TFR1504E
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Very happy with these products. Super easy to install. 610949



- TGMRTT15S
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


No instructions were included. I tried to find something on line but I couldn't find anything that looked like my kit. 501590


Comments

Sorry that instructions werent included. If you use the link provided, you can see or print the installation instructions.

-- Mike L - 04/28/2018

37830

- TFR250SDG
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


All components seem to be good quality. I installed the kit in a little over 1 hour. Have to admit, about 20 minutes of that was spent getting the factory bump stops out. Instructions (diagram) were not as helpful as they could have been. Even watched the install video, still could have used a little more info. Haven't hooked up the 5th wheel yet. Let you know how the SES works after next week. 502333



- TFR350SDF
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Awesome fantastic service 501012



- TGMRCK15S
by:

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I have waited till I had a heavy on the truck to review this product, it did a great job loaded. On a smooth road I can not tell any difference in the ride of the truck with no load. It is pretty stiff when you hit a big bump with no load. Installation was very easy. Overall I am very satisfied with this product. 504926


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Ask the Experts about this Timbren Vehicle Suspension
Do you have a question about this Vehicle Suspension?


  • Can Timbren Suspension Enhancement be Used with SuperSprings on a 2007 Chevy Silverado Classic 3500
  • The reason why you are not seeing all of that rear sag being taken care of with the SuperSprings Custom Suspension Stabilizer installed is because the part with the highest weight capacity for your 2007 Chevrolet Silverado 3500 is part # SSA245-2. Since this part has a weight capacity of 4,000 lbs it will not be able to help as much as it would if your camper did not weight over 4,000 lbs. The SuperSprings product that you have on your 3500 will not allow some Timbren Suspension enhancement...
    view full answer...

  • 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.
    view full answer...

  • Suspension Enhancement for a 2007 Chevy Silverado Classic Towing a 5th Wheel Trailer
  • The pin weight of a 5th wheel trailer is typically going to be much less than the 12,000 pounds springs # TGMRTT35S are rated for. So there is really no need for such a high capacity spring set. I recommend Timbren springs # TGMRCK15S rated for 3,600 pounds. This set should not interfere with the 5th wheel install kit because they mount to the bottom of the frame. I have linked a video showing a typical installation and a link to the instructions for you. If you want a little more...
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  • How to Pick Out a Timbren Suspension Enhancement for a 2009 Chevy Silverado 3500
  • We have two Timbren fits for your 2009 Chevy Silverado 3500. We have the part # TGMRCK35S which is rated for 8,600 lbs of suspension support and the part # TGMRTT35S which will provide 12,000 lbs of suspension support. Most likely the lighter duty setup would be the ideal system since the heavier duty version is for severe service vehicles like tow trucks that would be at or near capacity most of the time they are being used. You should note that these systems do not allow you to...
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  • Comparing the Timbren Springs and Roadmaster Active for 2004 GMC Sierra 2500HD with In-Bed Camper
  • The best option we have for your 2004 GMC Sierra 2500HD with truck bed camper is the Timbren Rear Suspension Enhancement System part # TGMRTT35S. This system is specially designed for vehicles with truck bed campers and will do an excellent job of providing you with both support and stability. The Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit part # RAS4611 is not really going to give you enough support and would not be a smart buy for your particular application in my...
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  • Suspension Enhancement for a 2005 Chevy Silverado 2500HD Diesel and Different Trailer Types
  • To start, adding a suspension lift on your 2005 Chevy Silverado 2500HD is going to require either a custom suspension enhancement kit or spacers because using a regular suspension enhancement kit on a suspension lifted vehicle would mean the helper springs would not engage when they are supposed to. Adding a lift can also make the towing capacity unknown (most likely lowers it) so I would not recommend it. Considering that you tow different loads the best option would be to go with air...
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  • Timbren Rear Suspension Enhancement System for a 2003 Chevrolet 2500 HD Silverado
  • The correct kit for your 2003 Silverado, 2500 HD with long Bed, is the Timbren Rear Suspension Enhancement System, # TGMRCK25S, which is the correct kit for 2 and 4 wheel drive models. We have a video installation that should be helpful and installation instructions for you to look over, see links. The kit you referred to is designed for 2500 Service vehicles only. Another option for your vehicle is the SumoSprings Custom Helper Springs Kit, # SSR-201, which is a good option if your...
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  • Can Spacer of Timbren kit part # TGMRTT35S be Left Off of Truck
  • Try taking the spacer out as it's only designed to make the Timbren kit part # TGMRTT35S contact the vehicle sooner. You should feel it smooth out a little bit but the unloaded ride quality of a 1 ton truck is never going to be super smooth.
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  • Recommended Rear Suspension Enhancement For 2000 GMC 2500 4x4
  • If your 2000 GMC 2500 4x4 is a heavy duty C/K Series, the Timbren Rear Suspension Enhancement System # TGMRCK35MA is the confirmed fit. This system is rated for a 10,000 lb capacity. If your 2000 GMC 2500 4x4 is a light duty Sierra, then the Timbren Rear Suspension Enhancement System # TGMRCK25S with a capacity rating of 6,000 lbs is the correct part. The # TGMRTT35S is not a fit for your model year vehicle.
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Info for this part was:

Photos by:
Theodore B
Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Jameson C
Updated by:
Adele M
Updated by:
Mary E
Video by:
Jonathan Y
Installed by:
Robert C

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