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  1. Vehicle Suspension
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  4. Rear Axle Suspension Enhancement
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Timbren Rear Suspension Enhancement System

Timbren Rear Suspension Enhancement System

Item # TDR2500CA
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Retail:$297.00
Our Price: $252.45
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6,000-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 TDR2500CA can be ordered online at etrailer.com or call 1-800-496-5010 for expert service.
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Timbren Vehicle Suspension - TDR2500CA

  • Jounce-Style Springs
  • Rear Axle Suspension Enhancement
  • Timbren
  • Extra Heavy Duty

6,000-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: 6,000 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


Reduced rear axle sag with Timbren suspension enhancement

Whether you're hauling heavy loads in your bed or cargo area or towing a trailer, you will often see the rear of your vehicle sag while the front end rises. In these cases, the rear axle is handling not only the weight of the cargo, but also more of the vehicle's weight. 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 comes with custom-fit brackets that are bolted onto each frame rail above your rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the leaf spring sits, 1" 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.


Action 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 vehicle 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 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.


Trailer swaying as it is towed behind a truck

Because your 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 your vehicle. This also works to make the sway subside more quickly.


An empty truck on a bumpy road without Timbren SES

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



DR2500CA - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Installation Details TDR2500CA Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Timbren Rear Suspension Enhancement System - TDR2500CA

Average Customer Rating:  4.7 out of 5 stars   (4182 Customer Reviews)

6,000-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.

by:

Delivered a day early, easy installation, just what I was after for my 2010 2500,with a leveling kit 63 gal auxiliary tank,generator, tools, and the like in the bed,probably 1000 pounds or so,300 or so behind the center of the rear axel, not so much by choice just the way it had to be ,these got rid of that annoying little squat,much more satisfied with the stance with the tongue weight on it,easy order easy delivery , you can see the before and after, awesome product!!




by:

The Timbren Suspension rubber mounts work great! Easy to install. The system only works when there is a load on the truck. It keeps my in bed camper from rocking. No air bags to fill no compressor to install. Simple system that works.


Comments
Good system! Simple and it works for my application! I have an 825 Lance in bed camper and I haul a 19’ Thunderjet boat the overloads reduce any sway and make for a comfortable ride
Kevin - 05/24/2022


by:
2003 Dodge Ram Pickup

I have driven cross country a number of times with my 2003 Dodge Ram 1500 since installing for my 10000GVW gooseneck trailer.
Has leveled my truck when pulling. Only drawback is the ride is a little stiffer when unloaded, but is a small sacrifice




by:

These went on my 2005 Dodge Ram 1500 4WD. Passanger side installed smooth but on the driver side I had one bolt twisted off as i was removing the bump stop, and the second bolt had no usable threads. So they both got drilled out and tapped new threads. I installed the timbrens and that left about a 1 inch space to the axle. Went and got my first load of plywood today and they worked great! It only took about 20 sheets of 1/4 inch plywood to get the suspension on the timberns, the ride was pretty good with no sag.




by:
2003 Dodge Ram Pickup

I have had these installed for a year now and they are great!! Installation was very easy, instructs were clear and easy to follow. I have towed our 5th wheel numerous times and it makes a big difference - the truck handles well and stays level when loaded. No air lines or air pumps to mess with - I don't even know they are there when I am not towing. I would highly recommend these.




by:

I have a 5th wheel camper with a pin weight of approx 1800 lbs. It made the rear of my 3/4 ton pickup squat more than I thought it would. After much research, I decided to try these. They have excellent ratings everywhere I look. Guys (and gals) rave about them in the towing forums that I frequent. Delivery from etrailer was fast. I was able to install them in about 20 minutes flat. HINT - I sprayed the nuts and bolts that fastened the original bumps stops to the frame several days before expected delivery with PB Blaster to make removal a breeze. These along with some new heavy duty shocks and my truck is towing the 5th wheel level and like a boss.




by:
2012 Dodge Ram Pickup

I ordered a pair of rear axle Timbrens for my new Ram 2500 as I plan to buy a 5th wheel and tour the US in my retirement. To me, the Timbrens are preferable to adding air bags or beefing up my leaf springs or shocks since they only "work" when you are loaded allowing you to keep your normal unloaded ride quality when not towing. e trailer's price, service and follow-up was great and I had the Timbrens installed and ready to roll 30 minutes after delivery.




by:
2004 Dodge Ram Pickup

I had watched the installation video so that i would have a idea how they went on well I was supprised I didnt have to raise the truck at all just went under removed bump stops found out that I didnt need the spacer bolted them up to the truck and was finshed in about a half hour. havent hauled anything yet or hooked up to camp trailer so dont know just how they will work but have read good reviews on camp trailer fourms so thought I would give them a try.




by:
2007 Dodge Ram Pickup

Product works. Basically these are axle bump stops with compressability . When installing set the gap to about 1.5 inches. Too small of a gap and you will get a stiff bump when the springs flex to close this gap when lightly loaded. Under heavy load the gap is closed and the Timbrens assist the springs. They are fairly stiff and limit both roll and bounce. Not as good as air bags,but much simpler. I found adding an extra leaf in the spring bundle made a best compliment to the Timbrens as the original rear leaf springs on my 07 Ram wer a bit too flexible for a heavy (1000 lbs tongue) weight. This is the simple solution; if you want total control and variable ride settings between heavy and lighter, then air bags with onboard compressor and in cockpit controller are better (at the cost of $$$ and complications) . Also i think the Timbrens are as good or better in heavy loaded "ROLL" as they are both in contact in heavy loaded conditions and quite stiff.

Consider also your rear tire selection when towing heavy (6K+); you should choose "E" rated tires 80 psi max, but run at 50/60 psi lightly loaded. The "E" rated tires will dramatically reduce Sway.




by:

Easy install.




by:
2009 Dodge Ram Pickup

Good product. Received 1 day earlier than expected. I watched the video before ordering so when I got the product it only took 45 min to install, adjust, and clean up. As always Etrailer had what I wanted when I wanted it and great shipping and cost. I have ordered in the past and will order again.




by:
2005 Chevrolet Silverado 2500

I have a 2005 Dodge 2500 5.7 hemi. I installed these in less then 30 Min. I pull a 36' camper with a hitch weight of 1820 lbs. Without these my truck sagged about 3 to 3.5", now I only see about a 1.5 to 2" sag. Truck is level while pulling. I can take 55 mile corners without feeling steering wheel fatigue. Keeps everything in sync. Love the way it handles the bumps as well. I will not ever have another truck without these!! love them! My son had his company install these in his Ford work van as he carries a lot of weight as well. He also swears by them.




by:

Very simple to install it took me about 10 minutes with an electric impact and a open end wrench.


Comments
Works great
Clifford - 08/31/2021


by:
2006 Dodge Ram Pickup

Just finished installing my Timbren RSE system. Install was easy and went very well. I had both of them in place in 60 minutes. Would have gone faster if the instructions would have been clearer about assembly of the rubber suspension unit to the mounting plate. The pre-tapped bolt hole in the mounting plate is similar to a lock nut and the bolt does not easily turn, even with a half inch drive. You will have to lock the plate into a vice in order to turn the bolt until it locks. There is a lot of resistance but keep turning until the bolt locks up. Other than that, the unit easily replaces the factory bumpers. Took the truck for a test drive and couldn't believe the ride, and this is without the trailer hooked up. Can't wait to hook up the fiver and check out the new suspension.


Comments
After a full summer of pulling my 5th wheel trailer I can factually say the ride of my truck dramatically improved! My wife noticed the difference too and commented on how much smoother everything feels. Im also convinced the smoother ride will reduce wear and tear on the springs, shocks and axel. The Timbren RSE should be standard on all trucks. Buy this product and you wont be disappointed.
Corsair2Driver - 03/01/2018


by:
2007 Dodge Ram Pickup

Shipped quickly, installed in approx 1hr. for both sides, didn't have to remove rear wheels. Just jack truck up from frame so axle will drop down and give enough room to remove old bumper stop, and install new springs. Have not tried yet under a load, taking a 3k mi trip in a couple of weeks w/vintage airstream, should know by the time I get back home how they will work. DO PUT SAFETY STANDS UNDER YOUR TRUCK, SINCE YOU WILL BE WORKING BETWEEN THE REAR TIRE AND THE TRUCK BED.




by:
2012 Dodge Ram Pickup

Awesome product! On my 2012 Dodge Ram 2500 5.7L Hemi 6.6' Box, I am running WITHOUT the provided 1" additional spacer. The provided me about 1-1/2 to 2" of stock suspension ride before the Timbrens kicked in. Once they engage under load, no complaints. Stabilized the loaded ride tremendously! Thank you etrailer.com & Noah!




by:

Easy to install, arrived early got to like that. These units sit approx. 1 inch from the axle so after loading my 5th wheel, Im expecting a front lift of no more that 1 inch compared to the 2.5 I had on my last camping trip.

Only giving 4 stars until after I put these to the test.

Dave.




by:
2012 Ram 2500

Timbrens arrived on time and packaged well. Very easy to install. Have not used them under load yet but with no load then ride is the same as it was before installing them.




by:

I will get pix when infix new parts for my truck .thank for delivery to me . Ne w parts for heavy load and pull heavy trailer of cars .i will order of rear sway bars cost $403.95 but i saw other SD trucksprings companies cost less $292.95




by:
2012 Dodge Ram Pickup

Put these on my 2012 Ram 2500. With the spacer, they sit off the axle about 1/2". Ride empty is unchanged, which is 3/4 ton stiff. These really help when loading up the bed with heavy loads, or when my gooseneck tongue might be a little overloaded. Go on very easy. I saved the original pads ( which are 4" above the axle) so when I sell/trade in my truck, I will retrieve these to use on my newer one. Highly recommend.




by:

Talked to Cathy T who was very friendly and was able to answer my questions and concerns( went into this being skeptical) Cathy assured me that etrailer was a customer orientated company so decided to take a shot, recieved product 1 day earlier than expected which was a nice surprise,as far as installation it was as advertised took less than 30min and was very easy (tip run bolt on open slotted end (back)most of the way in then slide in it will make it easier to tighten bolt) have not towed 5er to see how they actually work did raise the rear of truck 08 ram2500 td did not end up with any clearance but it does say in instructions that medium and heavy duty trucks will stay in contact feel like they will do the job. Will definitely recommend and make further orders from etrailer thanks


Comments
Have you towed yet?
-- comment by: Ken - 09/23/2015
Ken have not had a chance to tow 5er on the road yet,I did have to move it in the storage lot from one spot to another and am impressed that my truck stayed level I looked at the timbrens with the 5er hooked up and they were compressed some should have taken pic the tongue weight according to the website is aroond 1800 its a montana 3400rl hope this helps some, will update after towing waiting to mount new tires also bought from etrailer the provider G rated and has an L speed rating tire they are definitely heavy duty trailer tires and just from looking at them and picking up would say they are a good tire after some mileage will be the true test
-- comment by: Brian - 09/25/2015


by:
2010 Ram 2500

Installed on a 2010 Dodge 2500. I pull a Toy Hauler travel trailer which has a heavy tongue weight. The Timbrens level out the truck and seem to improve the ride while towing,


Comments
Pulled our travel trailer on a 4 month trip to Alaska last summer. The Timbrens worked great!
Jim L - 04/03/2020


by:
2013 Ram 2500

So easy to install. Just use supplied bolts to assemble the spring to the plate. Then use bolts from your bump stop to attach to the frame. Check your clearances and your done!




by:
2008 Dodge Ram Pickup

Holding up well under heavy loads and reduces vehicle rolls around curves and corners. Would buy again for another vehicle. Make sure the other suspension parts are in good repair too. This doesn't replace good having good springs and shocks.


Comments
Still holding up well. Glad I got them!!
Russ T - 05/06/2018


by:
Dodge

Hi all, Etrailer has been my go to for about 10 years and their products have always exceeded my expectations.

No different this time. I used these on a 2004 Dodge 1500two wheel drive with a Hemi. I recently purchased a slide in pop-up camper that weighs 1200lbs my may payload is 1700 lbs. Anyway, with the camper in when I hit a bump the vehicle would oscillate or bounce about 5 times before settling. I was going to put in helper springs but figured I'd try these instead.

With the camper off I didn't have to use jacks at all. I first used the rubber bumpers only, and with the camper in, they touched the axle; however, there was no measurable difference in the ride. The gap between the bumper and the axle was just over 1.5" unloaded.

I put the spacers in and the gap was about 1/2" between the axle and the bumper. No noticeable difference unloaded; however, with the camper in there is no more oscillation. Also, there is no sway going around curves.

I just spent a long weekend road-tripping in West Virginia on some pretty narrow rough roads and these things performed brilliantly. I am not sure of their longevity--love them thus far.

Took about an 2 hours to take the old bumpers off and put the new ones on. Pretty basic installation. I am an RN not a mechanic.



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See what our Experts say about this Timbren Vehicle Suspension



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  • Suspension Enhancement for a 2004 Dodge Ram 2500 4x4 and In-Bed Camper
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  • Which Timbren Kit for 2004 Dodge Ram 2500 Towing 12.5k Trailer
    For your 2004 Dodge Ram 2500 I would recommend the Timbren kit part # TDR2500CA which will provide you with an additional 6,000 lbs of support to the rear suspension. The heavy duty kit part # T94VR that you also referenced is a fit for your truck but it's going to be overkill for your truck and would give you a harsh ride. This kit should really only be used on trucks that will be at their towing capacity most of the time. The additional support of the lighter duty kit will be very helpful...
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  • Which Timbren Rear Kit the 6k OR 8k for my 2011 Ram 2500 Mega Cab Towing 10-14k lbs.?
    In your case I really like the Timbren Rear Suspension Enhancement System part # T94VR these have the 8K capacity which will help to take a lot of the stress and strain off of that rear suspension set up. Towing 10-14k can cause wear issues relatively quickly and these will do a great job reducing that drastically for you. If you were in the 5-10k or lower towing range I would lean to the lighter versions part # TDR2500CA these also do a great job of taking the abuse so the suspension...
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  • Timbren Suspension Enhancement System for 2007 Ram 1500 To Reduce Rear Sag
    Timbren jounce springs are a great option for your 2007 Ram 1500 with a little rear sag when towing. They are designed to give additional support by becoming more rigid as more weight is added. This means the empty ride of the vehicle shouldn't be impacted but the ride under load will reduce sag, increase stability and reduce body roll. If you have a mega cab model you will want # TDR2500CA designed specifically for that model. If you have any other model, then you instead will use...
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  • Comparing The Air Lift LoadLifter vs Timbren Rear Suspension Enhancement Systems
    For your 2012 Ram 2500, you are correct that either suspension enhancement system will work. However there are major differences between them functionally. The Timbren system # TDR2500CA is a very solid jounce spring. It is a strong Aeon hollow rubber spring that is a very easy installation. It is not adjustable, and there is no maintenance. The only down side to these is that they can engage on large bumps when the truck is unloaded. This gives you a decent kick because the springs...
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  • What Front Axle Suspension Kit Fits 2006 Dodge Ram 1500 2 X 4 Mega Cab
    The SuperCoils Custom Heavy-Duty Front-End Suspension Coils you referenced, part # SSC-22, fit a range of model years of the Ram 2500 and 3500 series, but not the 1500. For your 2006 Ram 1500 2 X 4 Mega Cab we do offer one front axle kit from Timbren, part # TDDF974A. This kit consists of two Aeon hollow rubber springs that sit above the axle. These help to stabilize and level the truck and provide a more comfortable ride by absorbing road shock. They provide progressive resistance as...
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