$359.99Ships in 1-2 weeks

Since you're here, add the front solution too.

  • SumoSprings Part Number SSR-338-54
  • SumoSprings Part Number SSF-106-47
Total Price: $609.98

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-338-54 has a 1,400 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.

Please Note: SuperSprings International products are specifically designed for vehicles equipped with factory suspension. We cannot guarantee their compatibility with aftermarket products or parts. For questions about fitment on your specific vehicle, please contact us.

Michael Hasenflu
2023-09-19 10:13:29

Made dramatic improvements

Daniel J Foley
2023-09-05 09:24:02

Vast improvement in ride, stability and handling. Cornering extremely improved. Fairly easy to install even with all the extra components tucked into the chassis.

James Bradbury
2023-04-04 09:09:29

Easy order and install

Chris Rounding
2022-06-01 16:06:15

SumoSprings have made our van handle much better - flatter through corners and less swaying over low speed bumps.

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Customer Reviews

4 ratings for the SSR-338-54
5 out of 5

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Product Specifications

Weight 4 lbs
Dimensions 10.75 × 7.25 × 4.5 in
Spring Diameter

Spring Height



1400 (lb) Capacity at 50% Compression