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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-127-47 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.

Patrick Kelly
2023-03-22 09:08:07

Gentleman on the phone with extremely helpful and they make a quality product. Towing feel so much safer and controlled with my SumoSprings.

Clay Jones
2022-06-02 08:55:35

Truck rear sumo springs is set for contact under load. Much improvement with towing. Sumo spring on travel trailer with continuous contact seems to have a smoother ride. I’m pleased.

2021-11-07 13:54:31

Our 2019 Superduty F-250 6.7 is a beast to tow with but our 30 ft Airstream with 1100 lbs of hitch weight can get its attention on bouncy back roads fast!. I originally had only one spacer but am now installing the 2d one so I get more compression. While not perfect it does tame down the bouncing on non smooth roads. I also have the ft coil sump springs installed they took out the ft end dip and sway on corners. I feel no negative ride quality from installing these products.

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Customer Reviews

3 ratings for the SSR-127-47
5 out of 5

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Product Specifications

Weight 6 lbs
Dimensions 13.5 × 8.25 × 4.25 in
Application(s) Summary

Ford F-250 Super Duty 4 X 2 (2017-2023) ; Ford F-250 Super Duty 4 X 4 (2017-2023) ; Ford F-350 Super Duty 4 X 2 (2017-2023) ; Ford F-350 Super Duty 4 X 4 (2017-2023)

Spring Diameter


Spring Height



1500 (lb) Capacity at 50% Compression