Rating: 
7 reviews
Code: TTORTUN4L
Retail:$240.52
Price:$199.63
Shipping Weight: 6 pounds
Shipping SpecialHollow rubber springs sit above the axle, helping to stabilize and level the Nissan Frontier while providing a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.
Features:
Specs:
When hauling heavy loads in the cargo area or by pulling a trailer, you will often see the rear of the Nissan Frontier sag while the front end rises. In these cases, the rear axle is handling not only the weight of the cargo, but more of the Nissan Frontier's weight as well. Because less weight is on the front axle, the front tires are making less contact with the road. Overall Nissan Frontier handling - traction, steering, and braking - is negatively affected. The resistance from Timbren's Suspension Enhancement System works with the Nissan Frontier's factory suspension to keep the Nissan Frontier level and improve your driving performance.
The Timbren system has a Nissan Frontier-specific bracket that will be 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 one inch 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 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 provides increased resistance, stiffening the suspension and keeping the Nissan Frontier level.
Each hollow rubber spring works independently to support the driver's or passenger's side of the Nissan Frontier. 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 hauling off-center loads.
Because the Nissan Frontier handles better with the springs, less turbulence will be passed along to the trailer helping 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 passing of a semi) because the movement from the trailer is not transferred to the Nissan Frontier. This also works to make the sway subside quicker.
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 as the rubber springs work to prevent bottoming out on rough roads.
Compared to the competition:
Timbren's suspension enhancement systems are much easier to install than air springs - no air hoses are needed to be run, no compressors or gauges to hook up, and no manual adjustments necessary. The rubber construction causes Timbren's springs to be more elastic than similar products constructed of micro-cellular urethane. More elasticity allows for a more comfortable ride because the rubber has more travel.
TT0RTUN4
Average Customer Rating: 4.7 out of 5 stars (7 Customer Reviews)
by: Rick S.08/20/2012
Is this review helpful?
2010 Nissan Frontier with Timbren suspension components. Trailer is a Jayco X17Z with close to 450lbs of tongue weight. Pictures are a before and after view of the rear suspension droop. 52393
Since the Timbren install we have towed the camper on back roads with stop and go traffic as well as on the highway at 65 mph. The Pro4X does ride level and handles the added weight well. I wish I had a longer wheel base and a tandem axle trailer as on occasion we develop a slight up and down oscillation until the suspension settles down. It is noticeable when driving over long bridges. This is mainly due to the truck setup and not the Timbrens. We had this problem before the install and the Timbrens are making a difference.I have also hauled an estimated 780 lbs of hardwood flooring in the bed at 65mph and the truck handled it with no problem. It remained level and stable.
comment by: Rick S - 1/29/2013
You might be able to adjust the tongue weight of the trailer and get that oscillation to settle. You want your tongue weight to be about 10-15% of the trailer total weight. Also if the trailer does not ride level, looking into getting a different drop length ball mount that will get the trailer level or even slightly nose down.
Patrick B - 2/8/2013
by: John W05/09/2013
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Seems like a good product, haven't pulled trailer yet. But unloaded drives well. Tell people that they need a 5.5 mm allen wrench & impact wrench to make install smoother.79630
by: David03/05/2013
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Fairly easy to install. Haven't had a chance to try it out with a load yet but looking forward to it. Better than adding a leaf and raising it up and nothing to maintain like an air system would have. etrailer customer service is top of the line. 69032
by: Jeremy01/30/2013
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Found these very easy to install on my 2005 Tacoma. The back end was beginning to sag some from overloading so added a helper spring to give the Timbrens some clearance and these fit in as designed. With a loaded 16' equipment trailer, the truck rides level and smooth.64558
by: Paul V08/16/2012
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Product is excellent. From the time I took the parts out of the box until the time I lowered the truck of the jack it only took me 45 minutes to complete the installation. Easy to install with only a few basic tools. The truck no longer sways around corners. It may ride a little stiffer but barely noticible. Well worth the price.51870
by: Rob03/29/2012
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2009 Tacoma, rear supports, easy install, jack it up, take off wheeel, remove 1 u bolt holding leaf spring and loosen the other, remove old bumper and slide in a new one, tighten & you're done. 35471
by: Cesar12/02/2011
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great product i installer on a 2005 Nissan Frontier works great 27534
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Installation Details
