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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-402-54 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.

Rasanel Aranas
2023-03-08 09:20:57

I feel more relax driving this campervan, more control in bumps and freeway driving is more fun.

John Connolly
2022-12-11 13:24:22

Installed in the front of my 2006 Sprinter 2500. They raised the front end 3/4" over stock. I removed and shimmed them for another 1/2" of preload. The ride difference is remarkable. There's no more blowing through the early suspension travel before a harsh bottom out. Culverts no longer send the van into wild rocking. After driving I told all my friends this is a "must do" to their Sprinters. Before the purchase I thought they were too expensive, now I view them as fantastic value.

Customer Reviews

2 ratings for the SSF-402-54

5 out of 5  

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Product Specifications

Weight 3 lbs
Dimensions 10.75 × 7.25 × 4.5 in
Application(s) Summary

Jeep Wrangler 4 X 4 (2007-2023); Jeep Gladiator 4 X 4 (2020-2023) ; Dodge Sprinter 2500 4 X 2 (2004-2006) ; Dodge Sprinter 3500 4 X 2 (2004-2006) ; Freightliner Sprinter 2500 4 X 2 (2002-2006) ; Freightliner Sprinter 3500 4 X 2 (2002-2006)

Spring Diameter


Spring Height