Will SumoSprings For 2021 GMC Sierra 3500 Help With Ride When Towing 5th Wheel Trailer

Question:

I have a 2021 GMC 3500 DENALI PULLING A 2021 GRAND DESIGN 303 RLS fifth wheel when i hook up it just barley touches the overload springs do you think the sumos would help with the ride and handling ?

asked by: Danny

Expert Reply:

The answer is absolutely yes, SumoSprings will unequivocally help with the ride and handling of your 2021 GMC Sierra 3500 when you are towing your 5th wheel trailer. The correct fit for your '21 Sierra 3500 is the following:

- SumoSprings Rebel Custom Helper Springs # SSR-203-40-2

So what happens when you are towing your 5th wheel trailer - even one with a lighter pin weight like your Grand Design 303RLS - there is going to be some handling and stability issues at times, even with just slight sag, and also uneven, shifting weight during crosswinds, passing a semi, or just making turns.

The SumoSprings # SSR-203-40-2 will then engage based on how much support is needed. So when there is sag, they will help your front wheels make complete contact with the ground as opposed to being slightly lifted under the hitch weight, and during any crosswind, when passing a semi, or making a tight turn, the springs will engage to help body roll and sway, giving you a smoother, more controlled ride.

expert reply by: Kyle S