A direct-replacement slipper spring built for RV trailer axles rated at 2,500 lbs. Heavy-duty black steel construction absorbs road shock and keeps your axle properly located -- whether you're hauling down the interstate or crawling a rough campground road.
Leaf springs are wear items. Over time they fatigue, sag, or crack -- and a broken slipper spring means your axle can shift position, causing tire wear, handling problems, and potentially a dangerous situation on the road. The Lippert 125250 is a proven OEM-style replacement that restores proper ride height, axle alignment, and load distribution on single- and tandem-axle trailers.
With a 26.88-inch eye-to-slipper measurement and a 2-inch-wide leaf pack, this spring matches the original geometry on Lippert-equipped axles rated for 2,500 lbs. The 4-leaf design delivers progressive spring rate -- compliant enough for light loads, firm enough under a full haul.
Four steel leaves work together to absorb bumps progressively, softening small jolts while still supporting full rated loads.
26.88 inches from the fixed eye to the slipper end -- critical for matching your hanger and shackle geometry exactly.
Black-painted steel construction designed to handle the flex cycles and road debris exposure typical of RV trailer use.
Lippert rates installation at approximately 2 hours. Standard hand tools and a floor jack are typically all that is required.
A slipper spring differs from a standard eye-eye spring in that only one end has a formed eye (which pins to the front hanger). The opposite -- the slipper end -- rides free in a slotted rear bracket, allowing the spring to flex and change length under load without binding. This design is common on lighter RV trailers and pop-up campers because it is simpler, lighter, and self-compensating as the spring wears or sags.
Because the slipper end is unrestrained, spring condition is especially important: a cracked or collapsed leaf can allow the axle to shift rearward or forward, affecting brake alignment and tire scrub.