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  • SumoSprings Part Number SSR-203-40-2
  • SumoSprings Part Number SSF-202-47
Total Price: $884.98

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-203-40-2 has a 3,000 lb capacity when compressed at 50%. The Blue SumoSprings shouldn’t be compressed past 70% of their original height in order to keep full memory rebound.

Note for lifted trucks: A Spacer Kit may be be required to install this product. Please chat with our team here to see if your particular set up requires this kit before purchasing.

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.

Rick Houser
2023-04-11 09:08:54

Truck rides a little stiffer when unloaded, but when loaded or towing my enclosed trailer and mainly my 5th wheel, we notice a major difference. We will be ordering a set for our 5th soon.

Elvis Methoxa
2023-03-08 09:27:03

Superb product!

matthew wozniak
2023-03-08 09:19:04

So far so good - product has been on for four days and k my towed fifth wheel once- impressive

Michael Mertz
2023-02-09 15:30:45

Purchased the SSR-203-40-2 during your sale back in November and just installed them today on my Silverado 3500 dually. I can't believe I waited so long. Thought we didn't really need them until we bought our 5th wheel RV but I was wrong. What a difference in the smoothness of the ride. This product should be standard form the factory!! I can't think of any downside to have these on every HD truck! Can't wait for your next sale so I can buy 2 pair for the 5th wheel trailer. If you ever run into anyone who is on the fence on buying these let me know. I would be more than happy to set them straight! Great product.

John Malecki
2022-11-08 16:56:46

Quick delivery. Easy instal. Noticeable improved ride.

Jeff Wilson
2022-08-23 15:18:54

Received springs pretty quick. Mounting went ok except emergency brake cable on right side was fastened in the way to install j-hook

Ralph Frias
2022-06-06 11:57:32

A little tricky with the install. Rear brake line RR in conflict with hook bracket. RL brake line passes over studs and nuts, friction on brake line a concern. Extremely happy with product. Used with cab over camper. Camper remodel at Grasslands, BLM areas, and forest roads. 4WD accessible public lands. Sumos made a big difference on washboard and rough roads, road haves and reasonable sway situations. I called and spoke to a friendly and knowledgeable salesman and followed his recommendations. I'm very glad I did.

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Customer Reviews

7 ratings for the SSR-203-40-2
4.86 out of 5

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Product Specifications

Weight 30 lbs
Dimensions 17.75 × 12 × 10.75 in
Application(s) Summary

Chevrolet Silverado 2500 HD 4 X 2 (2011-2023) ; Chevrolet Silverado 2500 HD 4 X 4 (2011-2023) ; Chevrolet Silverado 3500 HD 4 X 2 (2011-2023) ; Chevrolet Silverado 3500 HD 4 X 4 (2011-2023) ; GMC Sierra 2500 HD 4 X 2 (2011-2023) ; GMC Sierra 2500 HD 4 X 4 (2011-2023) ; GMC Sierra 3500 HD 4 X 2 (2011-2023) ; GMC Sierra 3500 HD 4 X 4 (2011-2023)

Spring Diameter


Spring Height



3000 (lb) Capacity at 50% Compression