PERFORMANCE MACHINE (PM) Four-Piston Differential-Bore Caliper Shim Kit — 3/8" caliper mount, 0.015"/0.03"/0.06" (2 each)

Precision shim kit engineered for differential-bore four-piston calipers. 🔧 This kit provides fine adjustment of caliper alignment and pad clearance to optimize braking performance and even pad wear.

Includes two shims each of 0.015", 0.03", and 0.06" thickness to allow incremental spacing adjustments during installation.

Designed for calipers with a 3/8" mount, the shims are manufactured to tight tolerances for consistent fitment. Use the supplied shim combinations to eliminate binding, correct rotor offset, or fine-tune pad clearance as required.