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SPC zinc alloy axle shims are made for over‑the‑road heavy truck alignment and provide improved compression strength versus aluminum. Supplied six per box, these 3.5" x 6.25" shims feature a 3.5° taper to correct caster on heavy duty tandem trailers and trucks. They’re designed to help technicians achieve repeatable axle alignment with durable shim material.
SPC Performance ZINC SHIMS 3.5x6.25x3.5 deg.
