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Your cart is empty.Trailer SumoSprings are a maintenance-free suspension enhancement built to create a better journey by reducing G-force in your towable by 68%. Handmade from micro-cellular polyurethane, they are designed to remove sway, hop, & body roll while increasing overall driver control and comfort while towing. The TSS-106-40 is designed for trailer frames with a GAWR of 3,000-5,000 lbs with the spring sitting underneath the axle tube. The Blue SumoSprings shouldn’t be compressed past 70% of their original height in order to keep full memory rebound. This product is designed to work on most trailers with the springs mounted below the axle. Because of the varying build designs from different trailer manufacturers, there are occasionally some models that this product will not fit. For installation of Trailer SumoSprings the gap between the top of the leaf spring and bottom of the frame must be between 6″ and 8.65″.
StephenH
Reviewed in the United States on August 3, 2023
I had installed SumoSprings on a Nissan Frontier. When we purchased our new tandem axle camping trailer, it had leaf springs. I was evaluating different options for providing some cushioning to smooth out the trailer's travel. Of the various options, I found the SumoSprings and decided that they would suit my purposes.I ordered them and when they arrived, I waited until I could pull the trailer out to a relatively level spot to do the initial measurement to determine how many spacers were needed. As it is, I found that I did not need any spacers and I did not need to use the relocation brackets as there were no gas lines or wires running where the SumoSprings needed to be installed. With that knowledge, I raised up one side of the trailer enough to fit the SumoSprings in place. Putting the U bolts in the proper place was not hard. Tightening them up was not hard either. One small point is that the instructions state that a torque wrench is needed, but no torque specifications were given. So I just took my best guess as to how tight the nuts on the U bolts should be.I think they make a difference in the ride of the trailer. I do feel more confident towing with them installed as I know there is some measure of shock absorption that was not there before. I do recommend them.
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