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How Many SumoSpring Trailer Helper Springs Are Needed For A Tandem Axle Trailer  

Question:

I asked a question about problems towing my trailer and you suggested SumoSprings, SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 3K to 5K - Overslung I have Dual Dexter axles so I guess I would need two sets? Thank you,

1

Helpful Expert Reply:

Yes, SumoSprings come in kits per axle so two kits would be needed if you have a tandem axle trailer. To determine the correct kit for your trailer you'll need to know the axle capacity and whether or not your axles are overslung or underslung. If your leaf spring stack sits above your axle then you're overslung, and if your leaf spring stack sits below the axle you're underslung. The axle capacity can be found on the axle tag that should be stuck directly to the tube of the axle. If not we can try to determine the capacity by looking at the hubs and bearings. I have the following recommendations based on the axle/leaf spring setup:

Overslung:
3k to 5k # TSS-107-40
5k to 8k # SS26MV

Underslung:
3k to 5k # TSS-106-40
5k to 8k # SS33HR

expert reply by:
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Kevin C
Overslung-Underslung
Overslung-Underslung
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Instructions for SS26MVInstructions for SS33HRInstructions for TSS-106-40Instructions for TSS-107-40

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SumoSprings Trailer Helper Springs Manufacturer Demo
SumoSprings Trailer Helper Springs Manufacturer Demo - Video
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