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SPC Flex‑Air HD shims (1/32") adjust thrust angle and toe by shimming torque arms on Peterbilt and Kenworth Flex Air suspensions. Supplied six per box, these shims are specified for use with those manufacturers' suspensions and provide a simple method to tweak alignment and thrust angles without major disassembly, aiding heavy‑truck alignment routines.
SPC Performance FLEX-AIR HD SHIM 1/32(6)
