Wilwood Red Dynapro-LP Rear Disc and Electric Parking Brake Package, Chevy 12-Bolt Axles with C-Clips, Drilled Rotors, 2.75-Inch Offset

Red low-profile service calipers and matching red EPB units are supplied with drilled 11-inch iron rotors in this rear kit. The mounting plates are intended for the Chevy 12-bolt C-clip interface at 2.75 inches of axle offset. Bill Wood founded Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and manufactures disc brake systems for motorsport, street-performance and specialized use. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are among its components; their selection depends on the needs of the complete brake system.

Technical Details

• Manufacturer part number — 140-16163-DR; supplied as one rear axle brake kit.
• Rotor material and surface — Iron; vented; SRP Drilled & Slotted; surface finish Black Electro Coat.
• Rear axle interface — 12 Bolt housing flange; 2.75 in; 69.85 mm axle offset. Measure the installed assembly.
• Supplied service pads — BP-10 compound; verify suitability for the intended operating conditions.
• Mechanical contents — Separate wheel hubs are not included; mounting hardware supplied; spindles not included.
• Cataloged rotor/hat mounting-hole pattern — 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm; 5 x 5 in; 5 x 127 mm bolt circle; cataloged stud-hole clearances 0.52 in; 13.21 mm. The existing hub or axle flange determines the vehicle wheel pattern and stud specification. These rotor/hat drillings do not convert that pattern.
• Parking-brake package — Two separate electric parking calipers, control unit, switch with pigtail and universal wiring harness included; vehicle electrical connections require installation.
• Rotor dimensions — 11.00 in; 279.4 mm outside diameter; 0.81 in; 20.57 mm thick.
• Hydraulic installation — Hydraulic lines and fittings are separate and must be selected for the vehicle; master cylinder not included; brake booster not included.
• Minimum nominal wheel diameter — 14 in; 355.6 mm; full spoke/barrel clearance must be checked using the installation drawing.
• Hydraulic service calipers — Forged Dynapro Low Profile; 4 pistons per caliper; Forged Aluminium body; lug mounting; Stainless pistons.
• Caliper finish and port — Red Powder Coat; hydraulic inlet 1/8-27 NPT.

Fitment & Compatibility

Match the actual rear axle to the 12 Bolt diagram and 2.75-inch offset before disassembly. Verify the bearing arrangement, axle register and wheel-bolt pattern independently, including any changes made during a previous axle conversion. Use the full 14-inch minimum wheel envelope for both caliper positions. Confirm C-clip axle retention and end play; a C-clip eliminator or different housing flange requires its own fit assessment.

Vehicle fitment in the table below remains conditional on axle identity. Measure the housing flange, bearing/retention arrangement, register and offset rather than relying on vehicle year. For Chevelle, 442, Beaumont, Camaro and Apollo vehicles, establish rear-axle fit independently of the front spindle configuration. Confirm the housing flange, axle retention and offset on the installed rear assembly.

The EPB is a parking-hold system, not an emergency stopping brake. It includes a separate left/right motor-driven caliper pair, control unit, switch with pigtail and universal wiring harness. Vehicle power, ground, ignition/accessory connections and protected cable routing must be installed to DS1353; it is not a plug-in factory-harness replacement.

PMB Performance has more than 20 years of parts experience and can help assess the documented brake configuration. Provide the vehicle details together with clear mounting-area photographs and measurements.

Review the Installation instructions, Technical bulletin, EPB mounting and wiring instructions before selecting hardware or checking wheel clearance.

Manufacturer Warning

Applicable to brake pads only. WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.