The SPC rear toe ±0.40° shim gives a direct fixed toe adjustment in 0.40° increments for twist-beam axles. It installs as a full-contact shim and combines with camber shims to obtain precise toe-and-camber settings. For larger corrections, two shims can be stacked per side, allowing technicians to reach required alignment tolerances with predictable results.
SPC Performance GM Rear Toe + - .40 Shim