Timbren Suspension Enhancement System - Severe Service - Rear Axle
(5920 reviews)
Price: $496.65
In Stock
Timbren Suspension Enhancement System - Severe Service - Rear Axle
Item # TDRTT4500
Retail:$584.30
Our Price: $496.65
You Save: $87.65
Will this fit?
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
In Stock
- All Info
- Reviews (5920)
- Q & A (0)
- Videos (2)
- Photos
Timbren Vehicle Suspension - TDRTT4500
- Jounce-Style Springs
- Rear Axle Suspension Enhancement
- Extra Heavy Duty
- Timbren
10,000-lb Capacity hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. Provides a comfortable ride by absorbing road shock and improving stability. Ideal for trucks with slide-in campers or an in-bed salt spreader.
Features:
- Improves suspension, handling, and safety
- Ideal for trucks with slide-in campers or an in-bed salt spreader
- Provides additional support as needed so you always have a smooth, comfortable ride
- Allows the leaf spring ample movement while cushioning light loads
- 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: 10,000 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
Whether you're hauling heavy loads in your bed or cargo area or you're 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.
The Timbren system comes with custom-fit brackets that are 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, 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.
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.
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.
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 your vehicle. This also works to make the sway subside more quickly.
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.
DRTT4500 Timbren SES with Aeon Hollow Rubber Springs - Rear Axle - Severe Service
Installation Details
This Product Fits The Following Vehicles
- 2010 - 2024 Ram 4500 2 Wheel Drive
- 2010 - 2024 Ram 4500 4 Wheel Drive
- 2010 - 2024 Ram 5500 2 Wheel Drive
- 2010 - 2024 Ram 5500 4 Wheel Drive
- 2008 - 2009 Sterling Bullet
- 2008 - 2014 Dodge Ram Pickup 4500 - Cab and Chassis
- 2008 - 2014 Dodge Ram Pickup 5500 - Cab and Chassis
Video of Timbren Suspension Enhancement System - Severe Service - Rear Axle
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Timbren Rear Suspension Enhancement System Installation - 2016 Ram 4500
Speaker 1: Today on our 2016 Ram 4500 we're going to be taking a look at and showing how to install the Timbren Rear Suspension Enhancement System, part number TDRTT4500.If you ever hauled a heavy load or had a big trailer behind your Ram, you've probably experienced what a lot of us do where the backend starts to squat down and we may get a little bit of sway and some body roll back there. When that squatting happens, we're putting a lot of unwanted strain and stress on the rear suspension. It's going to wear things out over time, and really, our tires aren't where they should be and our suspension isn't where it should be either. Since the backend is getting pushed down, the front end is getting lifted up slightly, which means our tires aren't going to make full contact, we're going to have irregular tire wear, as well as our headlights being out of alignment.But upgrading the rear suspension is definitely going to help with that. It's going to support the load back here and keep our suspension where it should be, nice and level. And it's going to prevent as much squatting.
It's also going to help with body roll because it's going to be able to counteract that and not sway so much. Since it's not pushing down so hard and we have that extra support in the back, it's not lifting up so much in the front so we'll have better tire wear, better steering response, and our headlights will be realigned.Now that we've gone over some of the benefits and seen what they look like, let's show you how to get them installed. Here's what our Timbrens look like once we have them installed. Now these are going to provide a lot of load leveling support and make sure that we're going to have superior performance whenever we have a heavy load in the back of our Ram. Our Timbrens are going to mount in between our frame and our axle, so that way, whenever we do have that load or heavy trailer and the suspension starts to flex downward, this is going to take up a lot of that force and it's going to absorb it, giving us the support we need.
The single convoluted design, compared to either having two or three, is going to be a lot more aggressive and more responsive when we put our load in, because it's going to have a lot shorter of a deflection curve, which means when we apply our load, it's going to respond more aggressively and be a lot more stiffer, giving us the support whenever we're towing those extremely large trailers or have those big loads in the back of the truck.Our Aeon springs are going to be made out of rubber, so they are going to act as a shock absorber. Whenever we're driving down rough terrain, hitting bumps, it is going to take a lot of that force and not transfer it into the cab of our truck. Now our springs are going to work independently from each other from side to side so it's going to help out a lot with those off-center loads, or if we're driving on uneven pavement, as well as help reduce body roll whenever we make a sharp turn or evasive maneuver.Our kit is going to come with both springs and brackets specifically made for our Ram. Now we're not going to have to drill at all and it's going to have all the hardware necessary in order to get it in place. Where our factory jounce stops are really just meant to prevent the truck from bottoming out and the axle coming in contact with the frame, our Timbrens are going to be there to help support and give us that extra strength in our rear suspension.Our Timbrens are going to be rated for 10,000 pounds, but keep in mind they're not going to increase the payload capacity of your Ram.
They're just there to help support your suspension so it doesn't have so much stress and strain on it. You always want to double check the owner's manual and never exceed the manufacturer's recommended weight.To begin our installation we're going to come to the rear axle. Right above that we'll have our factory jounce stop. I already went ahead and sprayed a little bit of spray lubricant on there, but it's always a good idea to soak it down because these bolts can rust because there's really not anything protecting them, especially if you have a salt truck like we have here.Then you're going to want to grab a 16mm socket and there's going to be a bolt on the backside as well as on the front of our bump stop holding it in place. We'll pull those out.
Then you want to hold onto the hardware because we are going to reuse it. We can start assembling our springs now.Now if we look on the inside with the large hole, you'll see that there's going to be a washer inside. You want to make sure that it's flat and that it lines up with the hole on the other side. We'll take our spring and our bracket and we'll find the threaded hole on our bracket. Make sure that's facing up. We'll get our spring loosely sitting on top so it's pretty well lined up. You're going to want to grab a 19mm socket and an extension. We can help guide that bolt through that washer and into the bracket. You want to make sure that that washer doesn't move on you and kick to the side and the bolt just go through the spring. You want to make sure it goes all the way through the washer and the spring. It'll take a little bit of wiggling that bolt around, but once you have it lined up and it's coming through the spring, you'll line it up with that weld nut. We'll get it started and we're going to tighten it down to where that spring isn't going to move on the bracket anymore.Now when we go to put our spring in place, it's very important that we pay attention to the bracket. One of them is going to be labeled left, which is going to be the driver side. It's also going to have two holes, one oval hole and a slotted hole. The oval one needs to go towards the front, and the slotted one goes towards the back. You'll notice, in case that sticker did come off, there is an offset. You want your holes to be towards the outside or towards the leaf springs. That way, you know which side the bracket's for.Before we put our bracket all the way up, if we grab one of our bolts, we're going to loosely install it into the rear weld nut where we took our jounce stop out. This'll help hold the bracket in place because it is slotted. We can just slide it in and it will at least hold it up there so we can get the bolt in on the front side. Now that we have both bolts in, we'll come back. Since there's limited space, we'll be using a 16mm ratcheting wrench to tighten up those two bolts.Now that this side is nice and tight, we're going to go ahead and repeat the same process for the other side. That'll finish up your look at the Timbren Rear Suspension Enhancement System, part number TDRTT4500, on our 2016 Ram 4500.
Customer Reviews
Timbren Suspension Enhancement System - Severe Service - Rear Axle - TDRTT4500
Average Customer Rating: 4.7 out of 5 stars (5917 Customer Reviews)
10,000-lb Capacity hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. Provides a comfortable ride by absorbing road shock and improving stability. Ideal for trucks with slide-in campers or an in-bed salt spreader.by: Kyle 08/22/2021
Exactly what I needed. Easy install
by: Frank 08/30/2022
by: Shaughn10/21/2022
About a 1/2 inch difference in gap at the bump stop perch but still within parameters. Truck sits perfect with trailer attached. Haven’t towed yet. After towing if they perform like they should will upgrade to a 5 star. Easy to install, definitely needed 2x4 and jack. 2011 Silverado ext cab with 30 ft Genisis 5th wheel.
by: Michael03/12/2023
Was able to install these with a 15mm flex head ratchet wrench and lifted the rear of the truck to make it easier. 30 minutes to take off 4 nuts and put em back on. 2 minutes assembling the timbrens with the added spacer. I have a f350 with a salter and plow. Loaded with salt the lights shoot up and in the snow ?? it’s like hitting hyper drive and you’re blinded. These helped big time. Very happy so far.
by: Tim03/17/2023
The pro: The longer, heavier bump stops worked great when hauling my mustang home from Chicago. The truck stayed level and handled great.
The con: I had to remove the bump stops for everyday use. They limited my suspension travel causing a stiffer ride.
by: Paul10/20/2022
Haven’t had it on long, but so far so good. 1999 F350 dually. Bolted up nicely. Total job took 10 minutes. Have hauled two gooseneck loads of hay and truck drives SO much better. Nice and level. Money well spent so far.
by: OmarG03/08/2023
I am so glad I bought these for my truck. I was able to install them myself using a jack and jackstands. The ride is bit rougher now; but the suspension is totally awesome compared to before. I am able to haul a bit more weight when needed.
by: Francis02/20/2023
very good product ,received just in time and fit perfectly on my GMC savana 2000 .Be sure to clean the two receptacle thats help.
très bon produit , reçu dans les délais et s'ajuste parfaitement . Assurez-vous de nettoyer le receptacle cela facilite l'installation.
by: John Z04/19/2023
I know it will be lovely when loaded or the trailer on. However,it rides like a wagon empty with brand new premium shocks and struts empty. Thud thud thud. You really cannot feel the shocks or suspension. Found exact same item plentiful for 60 bucks on eBay after I bought these for 250. I may cut these in half or put air bag on. I do not like the ride empty. No hard feelings. It is a good product maybe just not for me.
by: Jeffery08/03/2022
The timbrens actually did what they were suppose to do. However, once I starter driving out west I notice the timbrens were riding on the axle which cause the speedometer to jump around depending on the road. I would recommend them if you are hauling or towing a camper or RV. I was going to contact etrailer about maybe removing a spacer for one set however the other set came as one unit. The bottom line is the Timbrens does stabilize your load for safe travels. I will be contacting etrailer soon to assist in correcting the problem...Road trip from Idaho,Colorado,Wyoming,and Utah were beautiful... Thank you etrailer
by: Jesse03/20/2024
Pros: Cheaper and easier to install than airbags, do the job when load is enough to compress the shock, with added weight or towing, then it stiffens the rear very nicely.
Cons: Doesn't do anything until there is 2-3cm of compressed shock. It sits above the contact point, doesn't touch. Under normal driving, there is no benefit/improved stiffness/anti sway in rear or a leveling of the factory rear sag in a 2022 or newer Toyota Tundra.
If had it to do over, would have put some kind of spacer in between product and upper included bracket, the supplied bolt is long enough to accommodate, to eliminate the gap, and lift the rear 1-2 cm. Should do it anyway, maybe when swapping to summer wheels next month.
by: Phil 04/18/2023
The order with Will at etrailer was great. He was very helpful and knowledgeable, Installation was not easy but not too bad, The hardest part was removing the factory pieces I removed them from below which was a blind nut removal operation. This is on a 2017 Mercedes Sprinter motorhome. After removal of the factory pieces I discovered that access is much easier on top between the tire and the mud flap, I turned the front wheels inward and they didn't have to be removed. The front of the motorhome had to be raised quite a bit to get the Timbren piece jnserted. Also I learned to tighten the bolt and nut in the Timbren bumper as much as possible before installation because there is no access to the bolt head when tightening the top nut to keep the bolt from turning, preventing tightening the nut.
by: Little Doc11/29/2022
I’d seen similar products rated in the 4,000 lb ratings but I went with these. I’m not a mechanic but I removed the factory bump stops and installed both these in 30 minutes or less. I used my rolling jack and lifted from the drop hitch and easily removed the old ones and soapy water and 1/4 twist and these were on. Placed a block of wood in the space between these coils and lowered the jacks then pressed it with my tractor to confirm full engagement. I carry a lot of tools on a 2020 Chevy 2500 I do feel a bit of butt bounce on large bumps but other than that I’m very pleased.
by: KB - Henderson TN08/04/2023
Easy install took about 20 minutes on my 2017 Ram 3500 SRW. Had about 1/2 inch clearance as recommended. Loaded up my 5th wheel (2350 hitch weight) and about 200 lbs of gear in the bed. Just got back from a 800 mile camping trip through mountains of TN. You can really feel the difference around those sharp corners and uneven surfaces. The truck felt firm and controlled not hard and jarring as some have mentioned. Going over those overpasses with the wonderfully smooth (Not) joists was greatly improved. The truck would squat and rebound again, with a firm controlled response. Driving without a load felt the same as before without them. I would highly recommend these! Ordering from etrailer continues to be my go to option!
by: Grant02/25/2024
These work great for giving you a solid towing experience when loaded heavy; however, when driving empty you definitely get the jounce bumper “into the air” experience when driving on moderate to rough roads. I have the recommended gap installed between the axle and the timbrens, but with terrible midwest roads and highways it doesn’t seem to be enough gap. Smooth roads it rides great. It’s driving 80mph on the expressway and hitting potholes or large cracks where these will hit causing uncomfortable harsh ride.
I’ve resorted to installing and then subsequently removing these anytime I use my travel trailer for longer trips (30minute removal time). I tow a 7000lb loaded travel trailer with an f150 and just needed something to make the soft half ton suspension from porpoising too much on bad-roads. Mission accomplished when towing as I said these things work great for heavy loads. It almost rides better with heavy loads…. I was going to give airbags a try but the reviews from others have scared me from those because even with airbags at the lowest setting you still get the jouncing on bumpy roads.
by: Brian03/27/2024
So just got them installed today 3/27/24 haven't hooked up the 5th wheel yet but will be this weekend so we'll find out if they are good as everyone claims they are fingers crossed. Install was crazy simple took about 30min(had to find a wrench) have about 1/2in gap between the axle, really excited to test them. Will update the review after this weekend.
by: Leo08/04/2023
The Timbren rear bump stops for 2020 Suburban were great quality and fit perfectly in the replacement of the original ones with no problems. The old ones pulled right out by hand with no hassle. When I installed the new ones I put 2x4 blocks that I cut underneath the bump stops. Then hooked up the 6,400 lbs travel trailer with about 750 lbs of tongue weight on it and they pressed right into place. The Suburban was more stable because it had less swaying while towing. I also gained about 1 inche more in the fender gap which means less rearend saging.
by: Michael02/02/2023
I was back and forth between Timbren SES and airbags. Everyone in forums were very biased toward air bags and very opinionated on the Timbren SES. Yet I could find one instance in which someone tried the Timbrens, were dissatisfied and then switched to air bags. I called etrailer, Jamie recommended this product to me for my application. Installation on a 20-year-old truck had me nervous, I live in the Midwest and have a lot of salt. Installation was a breeze, and I have a B&W 5th Wheel Hitch (turnover gooseneck ball). This made the install a bit more challenging simply because I had a large bolt through the frame directly above my bump stop nut. If you do this install with the B&W Hitch, get a set of gear wrenches, or borrow a buddies 15mm and 9/16 wrenches. You need the 15mm to remove the factory nut and the 9/16 to install the Timbrens. I sprayed wd40 two nights in a row prior to installation to make sure I had good penetration of oil - I didn't break a bolt or a knuckle. I recommend installing the Timbren spring to the mounting plate, then install the mounting plate with Timbren to the truck. I didn’t need to remove my wheels or my spare, I jacked up the back under the hitch, used jack stands and let the weight of the axle separate the rear end from the truck giving ample room for the installation. After installation, I checked the clearance of the TImbren from the axle and had 1 inch of clearance. I installed my 1200-pound pickup camper and the springs just started touching the axle. I have a 21-foot fiberglass boat and seen about a 1/4-inch drop after I connected it to my truck. These things work and best part is – no maintenance and no danger of shifting weight if an airbag lost pressure or was punctured/damaged. I hunt with this vehicle and drive through thick brush and timber, I feel airbags wouldn’t hold up with the abuse I put my truck through. The Timbren SES system took the squat out of my truck and made the drop from the connection of my heavy boat hardly noticeable. Thank you etrailer, great experience as usual!
by: Jim 03/29/2023
Installed these Timbrens on my 2016 F350 to enhance the stability of my truck for a slide in truck camper. Have loved the results of them. They have noticeably helped leveling the truck/camper combo, and sway while driving. When the camper is off the truck these are not engaged. Have had no issues and would recommend them.
by: Jonathan01/31/2023
I don't usually write reviews but in this case I have to. I have been using these springs for about a year now and they work exactly as advertised. I carry a truck camper on my truck from March until November. Once I loaded my camper the truck sagged very noticeably. I tried the Roadmaster Active Suspension (don't waste your money) before I discovered the Timbren springs. The Timben springs installed easily, eliminated the sag and gave the truck a much more stable ride because it eliminated the side to side rocking in the back. If you are thinking about getting these, you will not be disappointed.
by: John 01/31/2023
I now have Timbren springs on 3 different trucks. They are one "solution" for tucks that are heavily loaded occasionally. Honestly, I dont like the handling characteristics of any of these trucks when the rear axle is bearing on the Timbren springs. Im not saying that theyre a bad product, and the company is reputable and easy to work with. I prefer a traditional overload spring or something similar to Stable Load overload spring blocks, which engage the overload springs sooner. I just prefer the way a loaded truck handles when it bears weight on a traditional overload leaf spring as opposed to the Timbren.
by: Tomalapala11/21/2023
Despite reading about the popularity in using Timbren’s for suspension modifications to assist in ride quality when loading up the Odyssey, I haven’t found many reviews about the Timbren’s for 4th gen Odyssey though there are a ton of positive reviews for the 5th gen Odyssey on the forums and internet.
I went with Timbren’s due to the “set it and forget it” lack of maintenance. I do notice a more stable ride even unloaded at highway speeds. There’s less sway in on/off-ramps and big sweepers. Not a huge change, but warmly noticeable. About the same quality of change one might experience from buying a brand new set of tires vs. not dangerously worn down tread. Where it really shines is under load/heavy cargo.
Before Pic (unloaded mulch); After Pic (loaded) - definitely not as much squat as with the prior OEM bump stops! Comfortable ride with less jostling/sway and haven’t bottomed out the springs over rough road. I’m impressed! Install was fairly easy, about 45 min per side taking my time, cleaning removed parts. One year later, I haven’t had any issues, and I feel very comfortable loading the minivan with all our gear/stuff.
I do not tow.
by: James 03/13/2023
So far soo good. Very easy to install on my 04 Nissan Titan. Took a little over two hours total to assemble all the tools lift the truck, set up my pneumatic tools, remove old bumppad and install new spring helpers. Hauled my first load of 2700 pounds of gravel. Much improved ride and vehicle control compared with stock suspension. Also rear end was atleast 3 inches higher than stock
by: Kenneth02/29/2024
Second set I have purchased. These went on a GMC 3500 fully 2022. Easy install and works great pulling a large fifth wheel and gooseneck trailer. Basically reduces squat.
by: Steven07/01/2023
ordered over the phone and got a very nice lady that was very helpful. was feeling like crap so took a few days to open box up and found out only half was there no bolts only one top mounting piece and only one rubber spring part. but i got two big rubber washer things
25
3502
Show More Reviews
See what our Experts say about this Timbren Vehicle Suspension
- Recommended Spacer Kit For A Timbren Rear Suspension System On A 2021 Ram 1500 We carry the Timbren 1" Spacer For Raised Frame Vehicles # TA25723-90AD00 which will help get you back into tolerance. We also carry the Timbren 1/2" Spacer For Raised Frame Vehicles # TA25722-90F00 if you'd like to get closer to the 1/2" mark and have the Timbrens activate sooner.
view full answer...
Info for this part was:
Installed by:
Jeff D
Video Edited:
Jacob T
Updated by:
Mary K
Updated by:
Wilson B
Updated by:
Michael B
Updated by:
Carrie F
Updated by:
Bethann B
Video by:
Jonathan Y
Test Fit:
Robert C
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Product Experts Available Now!
Call 1-800-940-8924
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.