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SPC zinc alloy axle shims provide a durable option for over‑the‑road truck and trailer alignment, offering improved compression strength compared with aluminum shims. Sold six per box, these 3" x 6" shims with a 1.0° taper help align front or rear axles and are intended for common tandem trailer and heavy‑duty truck setups where reliable shim performance is required.
SPC Performance ZINC SHIMS 3 x 6 x 1.0 deg.
