SuperSpringsTrailer SumoSprings for Trailer Axle with 5000-8000 GAWR, Spring-Over Axle Configuration | 1000 lb Capacity at 50% Compression | 4-Pack, Made in The USA | TSS-107-47

I installed two sets of these on my 351ms Momentum, the install was straight forward after a couple of YouTube views. First one always takes the longest and after that, the other three were installed quickly.The difference these made was quickly apparent. Going over bumps and the end of bridges I noticed the bounce was a lot less than without the Sumo Springs. Driving down the highway and through the big city was a lot smoother than before. I would recommend these Sumo Springs if you are looking for a smoother 5th wheel it trailer ride. We have a gooseneck hitch and these springs really made it less jumpy across the bumps and rough road. You never know if things will work the way others have said but in our case, these really helped the driving experience with our big Momentum, we are very glad we purchased them and would recommend them to others as well.

I’ve never had this much stuff bounce around inside my 40’ fifth wheel before.I think their claims are over exaggerated.Don’t rely on the 30 day money back guarantee. You have to pay for the shipping back and only get around 50% of the value.Now I’m stuck with them.They are simple to install though.

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.

Easy to install and works to take the bounce out of the 5th wheel while both moving and stationary. I did not have to reposition any wires or cables so it made the installation much easier.

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