When a shackle bolt wears, bends, or strips, your suspension geometry goes with it. This is the correct OEM-spec replacement bolt from Lippert -- the same 9/16" diameter, 3.74" length, 7/16"-20 threaded shackle bolt that came on your Lippert axle from the factory. No modifications, no guesswork, no ill-fitting hardware store substitutes.
Lippert axles are used across hundreds of RV and travel trailer brands, and the leaf spring shackle bolt is one of the most overlooked wear items in the suspension system. These bolts pass through the shackle, the eye of the leaf spring, and the hanger bracket -- taking constant stress from road vibration, load cycles, and side-loading during turns. Running a worn or undersized bolt risks shackle slop, uneven spring alignment, and accelerated wear on surrounding hardware.
Part number 71-5606 (also cross-referenced as Lippert 126197) is the factory-correct bolt for Lippert underslung and overslung leaf spring assemblies. If you are replacing shackle hardware as a set, pair this bolt with matching shackle nuts and bushings to restore the full assembly to spec.
9/16" diameter and 3.74" length match factory Lippert shackle hardware exactly -- no trimming or shimming required.
7/16"-20 threaded end (fine thread) for secure engagement with the shackle nut and proper torque retention under load.
Designed specifically for Lippert axle assemblies used on travel trailers, fifth wheels, and toy haulers across dozens of OEM brands.
Backed by Lippert's limited 1-year manufacturer warranty for defects in materials and workmanship.
Inspect shackle bolts at least once per season or any time you notice clunking from the suspension, uneven tire wear, or visible play in the spring shackle assembly. Common replacement triggers include:
Part 71-5606 is engineered for Lippert-brand axles. Lippert supplies axles to a wide range of RV manufacturers including Forest River, Keystone, Coachmen, Heartland, Grand Design, Jayco, and many others. If your trailer has a Lippert axle, check the axle tube stamp or the original build sheet to confirm your axle series before ordering, especially if the shackle configuration on your unit differs from a standard eye-and-shackle setup.