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The SPC heavy‑duty break‑away axle caster shims are sold six per box and serve to adjust pinion angle on Jeep CJs and similar vehicles using 1‑3/4" to 2" wide leaf springs. These shims use a 2° taper and provide a simple method to change axle inclination where needed. They’re intended for classic Jeep and comparable leaf‑spring applications requiring discrete shim increments.
SPC Performance BREAK AWAY AXLE SHIMS(6)
