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Recommended Single-Axle Trailer Hanger Kit for Double-Eye Springs 3-1/4" Front, 1-1/4" Rear  

Published 10/06/2026

Question:

What’s the torque specs for the bolts for the leaf springs

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Expert Reply:

Welcome back Thomas. The 3" long x 9/16" diameter bolts included with the Single-Axle Trailer Hanger Kit item # APS4 will need to be torqued to 65 to 90 ft-lbs when you install the 4-Leaf Double-Eye Springs item # e97SR.

The Single-Axle Trailer Hanger Kit item # APS4 is designed for single axle trailers ranging from 2,000 lbs to 7,000 lbs. It includes 3-1/4" front hangers, 1-1/4" rear hangers, 3-1/8" shackle straps, and the six suspension bolts and nuts need to attach 1-3/4" wide double-eye leaf springs like item # e97SR. The hangers are constructed of 3/16" thick steel and will need to be welded to the frame of your trailer.

What kind of trailer do you have? Feel free to answer this and throw in any other questions you have, where it says Add Comment.

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Jerred H
APS4
APS4
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