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SPC break‑away axle caster shims are heavy‑duty shims with a 1/2° taper designed to adjust axle caster and pinion angle on Jeep CJs and similar vehicles with 1‑3/4" to 2" wide leaf springs. Supplied six per box, these shims serve as a practical alignment tool for off‑road and vintage leaf‑spring rigs where small pinion angle corrections are required to restore driveline alignment.
SPC Performance BREAK AWAY AXLE SHIMS(6)
