Timbren Rear Suspension Enhancement System
Item # TGMRCK35
Retail:$468.32
Our Price: $398.07
You Save: $70.25
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1998 Chevrolet C/K Series Pickup
C3500 - Pickup
K3500 - Pickup
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1998 Chevrolet C/K Series Pickup - Timbren Rear Suspension Enhancement System
- Jounce-Style Springs
- Rear Axle Suspension Enhancement
- Extra Heavy Duty
- Timbren
6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your Chevrolet C/K Series Pickup. 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
- 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
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.
GMRCK35 - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren
Installation Details
Customer Reviews
Timbren Rear Suspension Enhancement System - TGMRCK35
Average Customer Rating: 4.7 out of 5 stars (5922 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: Stacy 02/08/2024
2009 Chevrolet Silverado
I had this in my other truck also and love them with my cab over camper on. Keeps the weight off my springs!
by: Doug08/04/2022
Makes a bouncy ride worse..less suspension travel and when it bottoms out it is very harsh. I would not do it again..maybe airbags would do the trick.
by: Jacobs11/27/2023
by: Kurt01/17/2019
This was soon easy I will order from e-tralier in the future.
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
25
3504
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See what our Experts say about this Timbren Vehicle Suspension
- Timbren Suspension Kit Recommendation for 1990 Chevy Silverado 3500Timbrens really are a great solution for suspension enhancement as they do not require you to maintain air pressure or run any air lines. The Timbren kit you'd need is the part # TGMRCK35 which is confirmed as a fit for your 1990 Chevy Silverado 3500. This fits versions of your truck that are with and without the overload springs. This will provide an additional 6,000 lbs of suspension support but since a trucks capacity is more than just the suspension strength this does not increase...
view full answer... - Does Timbren Kit for 1995 GMC K3500 Require Drilling to InstallThe Timbren suspension kit part # TGMRCK35 that you referenced fits your 1995 GMC K3500 without drilling so it would be a great solution for you. It also would not interfere with an aftermarket sway bar either so it would work well in that regard too.
view full answer...
- Will Timbren part# TGMRCK25S fit on a 2007 Chevy Silverado Classic 3500The difference between the 2007 Chevy Silverado 2500 and the 3500 series trucks is the weight capacity. The 3500 is going to have a higher weight capacity than the 2500. I spoke with the engineer at Timbren and he told me that the TImbren part # TGMRCK25S will fit on your 2007 Chevy Silverado Classic 3500, because the Timbren springs for the 2500 and 3500 models will install the same way on both truck models. These springs were tested up to 6,000 pounds and work well within those guidelines....
view full answer... - Recommended Rear Suspension Enhancement For 2000 GMC 2500 4x4If 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.
view full answer... - How to Pick Out a Timbren Suspension Enhancement for a 2009 Chevy Silverado 3500We 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 exceed...
view full answer... - Timbren Suspension Enhancement For a 2000 Chevrolet K2500 Classic 4x4 PickupYes, the Timbren # TGMFK25S front springs will fit your 2000 Chevrolet K2500 pickup. The K-series trucks were the classic version while the 2500 began the new Silverado series of pickups. If you are looking for similar rear springs we have their Severe Service # TGMRCK35MA or Standard # TGMRCK25 springs. The severe service are best for applications which always have additional weight such as trucks with a salt spreader, camper or truck bed box.
view full answer... - Timbren Rear Suspension Enhancement For a 1999 Chevrolet 3500 2WD DuallyThe 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...
view full answer... - How to Increase Towing Performance with a 2006 GMC Sierra 3500In order to determine the maximum gross trailer weight (GTW) that you can haul with your 2006 GMC Sierra 3500, you will need to find both the gross combined weight rating (GCWR) and the gross vehicle weight (GVW). If you subtract the GVW from the GCWR that will give you the maximum GTW you can safely tow. These figures can be found on the white tag inside your driver's door jamb. Unfortunately, the towing capacity of your truck will not change even with the addition of performance enhancements....
view full answer... - Correct Timbren Kit Fit for a 2006 Chevy Silverado 3500The only Timbren kit that fits the 1500, 2500, and 3500 models of the 2006 Chevy Silverado pickups is the Kit # TGMRTT35S for severe service vehicles. Aside from that all of the other kits are model specific. For your 3500 you'll need the kit # TUR350 rated for 6,000 lbs or the kit # TGMRCK35S rated for 8,600 lbs. I recommend the 6K version if you tow or haul occasionally, but you'll want the 8.6K version if you're towing or hauling on a regular basis. Attached are some review videos...
view full answer... - SumoSprings or Timbren Helper Springs for a 2008 Chevy Silverado 3500 4x4 DuallyThe SumoSPrings springs for your 2008 Chevy Silverado 3500 4x4 dually, # SSR-211-54, have a lower capacity than similar products; they top out at 2,800 pounds. Based on this I recommend going with the Timbren springs # TGMRCK35S which are rated for 8,600 pounds and will definitely prevent bottoming out when towing or carrying cargo in the bed.
view full answer... - Is There A Spacer Kit For Timbren SES To Fit A Lifted 2007 Chevy Silverado 3500 Yes, the Timbren Rear Suspension Enhancement System # TGMRCK35S can still be used on your 2007 Chevy Silverado even though its been lifted. You'll just need to install a spacer to get the gap between the Timbren and the axle around 1" to 1-1/2" to prevent a rough unloaded ride quality. The Spacer Kit for Timbren Suspension Enhancement System # T68MR can be used to eat up some of the space from the lift.
view full answer... - Timbren Recommendation for 2008 Chevy Silverado 3500HD Towing Heavy Fifth WheelThe 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 Recommendations for 2010 Chevy Silverado Towing 5th Wheel TrailerBoth the air springs and the Timbren systems would be compatible with an installed fifth wheel hitch, I've confirmed this for you with Timbren and Firestone. The Timbren system will not have any effect at all on your ride until there's a load placed on your rear suspension. As more weight is added, the springs will get progressively more stiff. This is a passive, non adjustable system. The Firestone Ride Rite # F2250 system would allow you to fine tune your suspension as you wish. An...
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