Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
SPC zinc alloy truck shims deliver improved compression strength and hardness over aluminum for front or rear axle alignment on tandem trailers and trucks. Supplied six per box, these 4"×6.5" shims use zinc alloy to reduce crushing and extend service life compared with standard aluminum shims. They’re intended as a fast, accurate way to correct axle caster on a wide range of heavy‑duty road applications.
SPC Performance ZINC SHIMS 4x6.5x0.5 deg.
