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SPC aluminum axle shims are an economical choice for over‑the‑road heavy duty truck and trailer caster correction. Sold six per box, these 3"×6" shims provide a 1.5° taper and moderate compression strength for dependable alignment work. They can be used with axle spacers or Z blocks to spread load and prevent crushing, offering a cost‑effective means to restore proper caster on many truck applications.
SPC Performance AL SHIMS 3X6X1.5 deg.(6)
