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SPC break-away axle caster shims are heavy-duty shims used to adjust pinion angle on Jeep CJs and similar vehicles with 1-3/4" to 2" wide leaf springs. The set includes six shims per box and features a 3.5° taper to provide precise caster correction. These shims offer a straightforward way to tune driveline angle and correct alignment for older leaf-spring applications.
SPC Performance BREAK AWAY AXLE SHIMS(6)
