
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
8,600-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your GMC Sierra. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.
Features:
Specs:
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 when loaded. Wear and tear on the factory suspension is also lessened because the rubber springs work to prevent bottoming out on rough roads.
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 when loaded or towing because the rubber has more travel.
Working really well, should have bought this first. Very easy to install.
Very easy to install and did everything it said it would do. I'm very pleased with the quality.
Excellent product. 2000 pounds in the box of my F-150, always stable on the
road.
These work like a champ. Ten minute install and removes the rear end squat straight away.
Yes I like them they do a great job and was easily installed directions was easy to follow
These have helped with squat and swaying but definitely rough the ride.
This is my second vehicle with the Timbren system. Simple to install and they work Awesome.
Install was a snap. Works as anticipated. Leveled out our 2014 F-250 very well when loaded vs without.
The product was very durable and good quality, I didn't need the spacers because without them I had 1" clearance until any weight was placed on the truck. I did have use the longer bolts however to get a strong torque when tightening the rubber spring. NOW THE TEST...I hooked up my 30' trailer using my equalizer 4 point hith, looking under the truck the rubber spring was pressing on the bumper stops just enough to seat firmly. After everything was hooked up, away we went! Test drive.... I must say, the truck and trailer handled great. The truck was not bouncing when driving, it had a solid feel to it. After finding a level street to park on, I got out and looked at the trailer and truck... Perfect! Nice and level.... I hope this helps another person decide the product works. Thanks trailer.
The product was very durable and good quality, I didn't need the spacers because without them I had 1" clearance until any weight was placed on the truck. I did have use the longer bolts however to get a strong torque when tightening the rubber spring. NOW THE TEST...I hooked up my 30' trailer using my equalizer 4 point hith, looking under the truck the rubber spring was pressing on the bumper stops just enough to seat firmly. After everything was hooked up, away we went! Test drive.... I must say, the truck and trailer handled great. The truck was not bouncing when driving, it had a solid feel to it. After finding a level street to park on, I got out and looked at the trailer and truck... Perfect! Nice and level.... I hope this helps another person decide the product works. Thanks etrailer.
Seems to have taken a lot of the roughness out of bumps and washboard dirt roads
Very easy to install and they worked as indicated keeping the back of the truck level.
Worked great, easy to install and I no longer get ss much bottoming out...
Pricey, but effective. The ride is unaffected when not towing. While towing, there is a bit more bounce on uneven rough pavement. Great on smooth even pavement.
Easy to install. can haul heavier loads without the rear squat. works great.
Excellent product,great service from Adam E highly recommend doing business with these people
Springs hold up good really helped out with the problem. My F450 squats less than before.
Eliminated rear end sag when towing and also stabilized the rear improving drivability. Highly recommend.
Too stiff of a ride. Felt like an old bouncy truck with a load on. They are sitting on my garage self.
Installed these on 7/6/2018. Install was pretty strait forward. Sure made a difference on the ride height. It is one of our service vehicles that we have, so we shall see if the driver of it notices the difference.
Have installed product on other PU. REALLY ENJOYED ORDERING FROM YOUR WEB SITE. I hate ordering on-line but found your web site a pleasure to deal with. Great Job.
Made my 1500 Dodge tow way more stable. took all the sway out of the truck when rolling down the highway
This is regarding the FRONT installation. Which is everything I'd hoped for. The truck still rides great but no longer bottoms out over any pebble in the road.
The front end no longer heals over in turns. I wanted to install a rear kit but it arrived as a mis matched box of parts. To be continued.
Works like I wanted it to. It does not bottom out like it did before. It stays straight in line with camper.
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