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Front SumoSprings are a maintenance-free suspension enhancement built to create a better journey. Handmade from micro-cellular polyurethane, they are designed to stabilize weight transfer and limit body roll while decreasing vibration, stabilizing sway, and softening harsh rebounds. 

The SSF-172-40-2 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.

Jeremy Eshleman
2022-06-01 13:24:42

Best upgrade to an old gas chassis. Makes ride much smoother. Makes driving much easier too. It was hard to drive 65 MPH but now drives 70+ with no effort. Reduced effects of tractor trailer passing, etc. Great product, highly recommend. Very easy install too.

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Customer Reviews

1 ratings for the SSF-172-40-2
5 out of 5

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Product Specifications

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

Ford F53 4 X 2 (1999-2003) ; Ford F53 4 X 2 (1990-1997) / 16k-18k; 20k-22k / Coachmen; Fleetwood; Forest River; Holiday Rambler; Jayco; Newmar; Thor; Tiffin; Winnebago

Spring Diameter


Spring Height



3000 (lb) Capacity at 50% Compression