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The SPC aluminum axle shim is a budget-friendly over-the-road truck shim sold six per box for correcting caster on trailers and trucks. Offering average compression strength and hardness, these shims come in a 3.5" x 6.25" size with a 1.5° taper. Use Z blocks or axle spacers to spread load and prevent shim crushing during heavy-duty tandem alignment work.
SPC Performance AL Shims 3.5X6.25X1.5 deg.(6)
