This is Wilwood's Forged Narrow Superlite 6R front big-brake hub kit, part 140-10775-D, built for 1960s to 1980s Chevy C10 trucks that run Classic Performance Products (CPP) drop spindles. It pairs six-piston black powder-coated calipers with two-piece drilled and slotted 13.06-inch vented rotors. Compared with a stock front brake setup, the larger rotor and six-piston caliper give a truck with bigger tires or a heavier engine more braking capacity and pad area. Because the kit arrives as a complete front hub assembly with its bearings, seals, and mounting hardware, it avoids the piecemeal sourcing that often makes a cheaper bolt-on upgrade more expensive in the end. This is a Chevy C10 1963-1987 big brake kit for owners searching for a 13.06 drilled slotted front brake setup, a 6-piston front kit, or a CPP drop spindle brake upgrade.
Before ordering, confirm your spindles and wheels. The manufacturer's listing for this front kit family says it works only with CPP drop spindles (CP30106-2, -3, or -4), so the spindles must be sourced separately. Plan on at least 17-inch wheels, and verify clearance with a wheel template before buying.
No. The manufacturer's listing for this front kit family states it works only with Classic Performance Products drop spindles, specifically CP30106-2, CP30106-3, or CP30106-4.
The manufacturer lists a 17-inch minimum for its closely related 13.06-inch hat-style kit. Its assembly sheet also calls for a minimum of 0.080 inch of clearance between the wheel and caliper in all areas, so confirm fitment with the manufacturer's wheel clearance diagram before ordering.
This is a moderate-difficulty job. It is a suspension-level front-end install, so raise and safely support the truck, remove the wheels, and strip the old brakes down to bare spindles. Clean any nicks or burrs from the spindle mounting faces. Wilwood's assembly sheet for the Superlite 6R C10 front kit calls for packing the bearings with high-temperature disc brake grease, pressing the grease seal in flush, sliding the hub onto the spindle, and securing it with the spindle washer and nut. Finish with a new cotter pin, then fit the rotor and caliper, and check wheel-to-caliper clearance. Note that the sheet was written for Wilwood's own spindle, so follow the CPP spindle instructions where they differ. Torque specs and a bearing preload check should come from the spindle maker's documentation, not from memory.
