Timbren Rear Suspension Enhancement System
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1990 Chrysler TC
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1990 Chrysler TC
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When hauling a heavy load or towing a trailer, the rear end can sag and throw off your handling. The Timbren Rear Suspension Enhancement System adds up to 6,000 lbs of extra support on the rear axle to keep your truck level and steady. The hollow rubber springs mount above the axle and stiffen progressively as more weight is added, helping to eliminate squat and keep braking, traction, and steering under control.
Rough pavement and bumps can beat up your factory suspension. These Aeon hollow rubber springs work like heavy-duty shock absorbers, taking the brunt of every bump to smooth out the ride. The rubber design soaks up road shock and vibration, keeping the truck comfortable when loaded and cutting down on wear to the stock suspension by preventing bottoming out on rough terrain.
When you swerve or hit uneven terrain, each Timbren spring works independently to support its side of the vehicle. This helps control body roll and keeps the truck stable through corners, wind gusts, or when carrying off-center loads. The result is a planted feel on the highway and less sway transferred to a trailer behind you.
Adding rear support doesn’t have to be complicated. The Timbren system includes custom brackets, hardware, and two Aeon rubber springs that bolt directly in place of the factory bump stops with no drilling required. There are no airlines, compressors, or manual adjustments to deal with—just a simple bolt-on setup that’s ready for real work once installed.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
They work great. Just what I wanted.
Works great. Truck rides as normal without load. Load it up and they engage and the truck rides level.
fast delivery easy to install and serves the purpose for which was intended with out question quality 5 stars
Parts came in sooner than I thought. Instructions were very good and easy to install. Took 15 to 20 to install GREAT PRODUCT.
Rose listened to my story and helped me choose the correct product. She was wonderful to work with . She had good knowledge of the products.
I will work with etrailer and Rose again in the future.
These stop the sag/bounce back significantly. You can definitely feel that these are working when you hit a bump in the road. Helps stop the "floating" feeling
I purchased these to help with the squat on my F-150 when towing my 32--foot travel trailer. I need to tweak the setup on my WDH, but otherwise am very pleased. Without the trailer, you don't even know they're there.
Install on a 2008 Ford F150 was very easy. I removed the old bump stops and installed these right into the existing hole. Perfect fit. Heavy duty. Worth the money.
I purchased the Timbren rear kit for my 2010 F150. I occasionally haul two motorcycles and wanted to get rid of the sag. The install could not be any easier. My truck required the extra bushings that are included, this gave me the recommended space between the axle and the bushing. Perfect fit, no issues. Great service from etrailer, ordered on sunday and package arrived Wednesday using the free shipping option.
Ordered Sunday, received Friday. Love the service of etrailer and will continue to use them. Put the timbrens on my heavy 1/2T F150 and they went on like a charm. Used the spacer and got 1" of clearance, well within the requirements. This should take the sag out of towing my fifth wheel trailer.
Got in the mail next day offer ordering. Put on the truck, in about 20 minutes. Took truck for a drive and Just what I was expecting. Can't wait to pull the travel trailer next and see how that goes.
I installed these on a 2014 F150 to cure the sag when attaching my 14' cargo trailer. They installed easily and after using them for a year I can say they've leveled things right out. I also can't detect any noticeable degrading of the ride when not towing. I'm very pleased.
I have been very satisfied that I choose this over air bags. With the max load tounge weight from a fifth wheel rv in the bed, the truck and rv are perfectly level. Happy camper!
As always, shipment was super-fast! Product installed easily and works as expected. I pull a 5th wheel with my F-150 w/ the " ECO-BOOST " engine. Made a huge difference in handling.
Kirtland J.
8/7/2015
A year and 10,000 miles later, still going strong!
This system worked out really well on my 2013 F150 XLT Crew Cab v8. I needed to remove the top rubber spacer, but afterwards, I have plenty of suspension travel for normal driving and good suspension control when towing. This reduced the "dolphining" I experienced while towing. Highly recommend this system for towing heavy loads. Also, recommend the Superchips programmer (towing tune) to round out your towing package.
After reading all the great reviews about how great this company is and how this product will level my truck with a heavy load, I ordered. I installed the product and the ride was an unbearably jarring. I emailed customer service with my concerns and let them know that I thought it would be fair to contact them prior to writing a review to try to come up with a solution. Wayne called me back and as we discussed the issues, it came down to him identifying four things that I consider non-solutions. 1. I cannot return the product. 2. He let me know that if I had more weight in my truck the ride would probably be better. 3. I could sell them on Craigslist. 4. I could add a set of air-bags.
Airbags? These were suppose to be better than airbags. What a waste of money.
Timbrens were very easy to install on my F150. Has made towing my travel trailer much better. I would recommend them to anyone towing a heavy load.
Clarence B.
11/18/2017
Working as good today as the day I installed
One year of ownership and I am still just as happy as day one. The best compliment I can give for this product is that I notice no difference without the trailer being hooked up - other companies suspension add on's would still be active making for a harsh ride or a lighter wallet if you want better ride quality. But the Timbren bumpers are not effecting my suspension when empty and have been a VERY cost effective solution for my needs - thanks etrailer for the great customer service with all the products recommended by your thoughtful staff.
Once my trailer is hooked up to my Gen-y hitch there is very little sag and a good portion of the suspension travel is left to absorb any bumps and potholes the Gen-y doesn't take care of. 10 thumbs up
Item: TFR1502D: 2 wheel drive Ford F-150
I haven't used my truck to pull our camper yet ... but soon, weather permitting.
The directions for installing this item on are terrible ... I had to make 3 calls to customer service on how to install and place the tabbed mounting bracket to the frame of my truck ... no one I talked to really knew. I see the picture as they are different, but wanted to be sure if I had done my install correctly.
I recommend the video on U-Tube ... it has good information and the video will walk you thru the install. Please update the video on this product and include specifically how to assemble and place the brackets to the frame of your vehicle.
Thank You
Joe J.
4/4/2019
Great
They have worked flawlessly since installed. The truck settles and sits level no matter the weight of the trailer. They keep the truck from bouncing with weight as well. I pull a 9500lb travel trailer and they really help with squat and handling. I would buy these again.
Easy to install and works as advertised.
Chris
4/6/2026
Still very pleased with this product.
Fantastic and keep the truck level no mater what we put in it.
Question, the round rubber spacer...is it a part that MUST be used or is it optional? Because...after the SES was installed on my truck, i noticed that the round rubber piece was NOT installed. Please advise.
Brooke M.
1/13/2025
Hey Jeffery! It is not a must - it is a spacer and if you dont need it, you don't have to install it. You want an unloaded truck or van to have a half inch to inch and a half gap. Its just there to bridge the gap if there were too much space between the Timbren and the spring. But if all is well without it, that is just fine and dandy!
I was towing my 32 ft travel trailer using standard WdH and sway bar with my f150 and before installing Timbrens, my truck was all over the place forcing me to grip the wheel (white knuckle) and stress out. After installing Timbrens, the rear of the truck feels planted while towing and I can literally tow now with one finger where before, I would have to give my steering wheel the death grip. Added bonus is that I can carry heavier loads in my bed if needed without squat. I can also pull my 32ft Trailer to the dump at State parks without WdH (saves bit of time) while driving slowly. I love the daily drivability and Ecoboost power of my f150 and now it's a towing machine! I'm a happy Timbren customer, as I didn't want to trade for a 250 and now I don't have to.
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Randy
2/9/2019
Helped out on load a great deal! Under a load the truck is much more solid ride.