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Can the Leaf Springs Be Upgraded On a Lippert 3,500 Lb Axle

Question:

Is there a heavy duty replacement leaf spring for the Lippert 3500lb tandem axle? The stock set up is too soft without any load in the trailer. Dry weight of trailer 5661lbs. Payload rating is 1934lbs. which totals 7595lbs which is much greater than the 7000lb rating of the axles. Dealer says it is within normal range because tongue weight is 620lbs. Im looking to replace the leaf springs to stiffen the suspension. I do not plan to exceed the payload or axle ratings. Thankyou

1

Helpful Expert Reply:

It is possible to upgrade the leaf springs on a trailer to a higher rated set but I do not recommend this as it can create a rough ride. The better option would be to install the SumoSprings Trailer Helper Springs part # TSS-107-40 for overslung or part # TSS-106-40 for underslung axles. These will offer both additional support without decreasing the ride quality.

If you would still like for me to recommend a set of upgraded leaf springs, I'd need to know the unloaded length from eye to eye.

helpful expert reply by:
1
Conner L

Question:

This is a tandem axle travel trailer, are you recommending two sets of Sumo spring helpers? I would rather install the heavy duty leaf springs. 25 1/4 eye to eye. Thanks

1

Helpful Expert Reply:

Correct, you'd need to use two sets of the SumoSprings Trailer Helper Springs or upgrade to the 4-Leaf Double-Eye Spring part # SP-218275 which would be about a 1,500 lb upgrade.

helpful expert reply by:
1
Conner L

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