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The Fabtech square U-bolt kit is a rear leaf spring fastening kit listed as 9/16-18 x 12.50 x 3.10, with product notes showing 3.10 in. x 13 in. x 9/16 in. It’s offered as an economical, straightforward option to secure the axle to leaf springs when lifting the back of a truck, intended to complement Fabtech leaf or lift hardware for a finished installation.
Fabtech Square U-Bolt Kit - 9/16-18 x 12.50 x 3.10
