SumoSprings Rebel Custom Helper Springs For 2025 Ford F350

Updated 10/27/2025 | Published 03/21/2025

Question:

I have a 2025 ford f350 and have about 4.5 of rear sag when hauling my fifth wheel with about 3200 pounds in the bed. I have been looking at Sumo Rebel springs and TorkLift Stableload for upper overload springs to reduce the sag and improve sway and roll. I was wondering which might perform better for this while not making unloaded ride more harsh.

asked by: Nelvin P

Expert Reply:

Hello Nelvin, thanks for reaching out, and congrats on the new truck. Between those two options I recommend the SumoSprings Rebel Custom Helper Springs # SSR-128-47-2. Those StableLoads are fine but you will see much better ride leveling with the sumos. They are 5,000 lb capacity so these will help a lot with leveling and stability. It may not take care of 100% of the sagging, but it will be noticeably improved.

Also these Rebel springs are two-piece so they separate when not under a load which means the factory ride will be unchanged. They only engage and compress when under a load so you don't get a harsh ride.

expert reply by: Jesse M

SumoSprings Rebel Custom Helper Springs
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Jesse M.

10/27/2025

Hey Nelvin, how did things turn out after adding the SumoSprings Rebel helper springs to your F-350? Did you notice a big difference in the rear sag and sway when towing your fifth wheel? Your update could make it easier for others setting up similar trucks.