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Trailer Leaf Springs

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Richmond, CA


Trailer Leaf Springs for Smooth, Level Towing

Dial in the support your trailer needs by matching spring style and length to your hangers and axle rating. Measure eye-to-eye with the trailer unloaded; springs relax over time, so a slightly shorter replacement can fit, and a modest step up in capacity can help prevent bottoming out. Replace springs in pairs, add new U-bolts, and consider fresh hardware or hangers if switching between double-eye and slipper.
Yes, going to a slightly higher spring rate can reduce bottoming and rub. For a 2,000 lb axle, a 24-5/8 slipper is a common fit; if you need more capacity and length options are limited, new hangers can let you switch to double-eye springs. If one side sags from heavier slide-outs, balance the load and replace springs in pairs on that axle.
Match the spring style and length to your current setup, measured eye-to-eye (or eye-to-end) with the trailer lifted to remove weight. Slightly shorter can fit since old springs flatten over time. You can step up in capacity a bit to reduce bottoming, but it won't increase payload and can firm up the ride. Verify the axle rating and pick springs that meet or slightly exceed it.
Coat the springs with multiple layers of paint before mounting to help reduce corrosion. Rinse after saltwater dips and inspect for rust spots; some spotting can still show over time. Touch up paint and keep hardware greased to extend service life.
Replace shackle bolts and U-bolts with the springs, and inspect the equalizer and hangers. Don't reuse U-bolts. If using wet bolts, align the grease hole at 3 or 9 o'clock. Remove plastic bushings and install brass bushings as needed. If a spring broke, check that the equalizer hasn't rotated and correct it before tightening hardware.