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Rear SumoSprings are a maintenance-free suspension enhancement built to create a better journey. Handmade from micro-cellular polyurethane, they are designed to reduce rear-end sag and increase load carrying ability while decreasing vibration, stabilizing sway, and softening harsh rebounds.
The SSR-307-47 has a 1,500 lb capacity when compressed at 50%. The Black SumoSprings shouldn’t be compressed past 65% of their original height in order to keep full memory rebound.
I have had these on my truck for about 8 months and while I love the extra stability they give me while towing my boat unfortunately all but 3 of the 16 bracket studs broke off after less than a year of use. Not sure if I received defective brackets or not but supersprings customer service made it right for me and sent new brackets with no questions asked. Other than this issue the sumo springs have been great for towing.
3 out of 5
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