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SPC aluminum axle shims offer a low‑cost option for over‑the‑road truck caster correction, supplied six per box. These 3.5" x 6.25" shims carry a 0.5° taper and provide standardized spacing for heavy duty trailers and trucks. Use them where average compression strength is acceptable and a cost‑effective shim solution is needed to restore proper caster on commercial axles.
SPC Performance AL Shims 3.5X6.25X0.5 deg.(6)
