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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-280-54-1 has a 7,000 lb capacity when compressed at 50%. The Yellow SumoSprings shouldn’t be compressed past 55% of their original height in order to keep full memory rebound.

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Product Specifications

Weight 39 lbs
Dimensions 17.75 × 12 × 10.75 in
Application(s) Summary

Workhorse W20 4 X 2 (2001-2009) ; Workhorse W22 4 X 2 (2001-2009) ; Workhorse W24 4 X 2 (2004-2009)

Spring Diameter


Spring Height



7000 (lb) Capacity at 50% Compression