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Please help us find a replacement leaf spring for a very heavy duty trailer?

We have a custom built trailer, built 40 years ago. Due to the very special design of the trailer, a near exact replacement is needed.

DESCRIPTION: 2 inch wide, 4 Leaf, Flat end Slipper type, 29 1/2 inches from pivot center to end, 3/4 inch pivot ID, and the leaves are roughly 7/16 inch thick, or 400 thousandths as measured with micrometer. We do not know the load rating of this spring, but the total design rating of the trailer + load was about 10,000 pounds.

We do know the spring was salvaged from a very large mobile home's axle assembly.

Could you please help us find a source for replacements? The most important specifications are the width (2") and the pivot hole. (3/4") Possibly a different number of leaves could work also. Any and all suggestions will be appreciated very much.

Thank you for your help.

1 Answer

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  • Bomba
    Lv 7
    1 decade ago
    Favorite Answer

    Since you cannot identify the spring by its origin, your have two avenues.

    (1) Consult with a heavy equipment manufacturer or repair shop and (2) return to the truck section of a large salvage yard. In either case, if you find a close enough match, I would recommend that you get the set of two spring assemblies not just the single assembly and modify the frame to adopt them.

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