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The SPC zinc axle shims (4" x 6.5" x 2.5°) are heavy-duty over-the-road shims for aligning front or rear axles on tandem trailers and trucks. Zinc alloy construction offers superior compression strength and hardness versus aluminum. Each part number supplies six shims per box; use them with Z blocks or axle spacers to spread load and prevent shim crushing.
SPC Performance ZINC SHIMS 4x6.5x2.5 deg.
