Wilwood Rear Drilled 12.19-Inch Disc Brakes with Black Dynalite and EPB Calipers, Chevy 12-Bolt C-Clip Axles at 2.75-Inch Offset

The drilled 12.19-inch rear package combines black four-piston Dynalite calipers with independent electric parking units. Its backing plates and brackets suit the specified Chevy 12-bolt C-clip housing, with axle measurements needed to verify the installation. Founded by Bill Wood in 1977 and based in Camarillo, California, Wilwood Engineering manufactures and designs disc brake systems and components. The range serves motorsport, street-performance and specialized applications with calipers, brake rotors, master cylinders, valves, fittings and brake lines. Matching individual components requires considering the full brake assembly.

Technical Details

• Manufacturer part number: 140-16164-D; supplied as one rear axle brake kit.
• Rotor material and surface: Iron; vented; SRP Drilled & Slotted; surface finish Black Electro Coat.
• Caliper finish and port: Black Powder Coat; hydraulic inlet 1/8-27 NPT.
• Mechanical contents: Separate wheel hubs are not included; mounting hardware supplied; spindles not included.
• Rotor dimensions: 12.19 in; 309.63 mm outside diameter; 0.81 in; 20.57 mm thick.
• Rear axle interface: 12 Bolt housing flange; 2.75 in; 69.85 mm axle offset. Measure the installed assembly.
• Hydraulic installation: Hydraulic lines and fittings are separate and must be selected for the vehicle; master cylinder not included; brake booster not included.
• Hydraulic service calipers: Forged Dynalite Internal; 4 pistons per caliper; Forged Aluminium body; lug mounting; Stainless pistons.
• Supplied service pads: BP-10 compound; verify suitability for the intended operating conditions.
• Parking-brake package: Two separate electric parking calipers, control unit, switch with pigtail and universal wiring harness included; vehicle electrical connections require installation.
• Minimum nominal wheel diameter: 15 in; 381 mm; full spoke/barrel clearance must be checked using the installation drawing.
• 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.

Fitment & Compatibility

Installation requires the 12 Bolt housing flange and a measured 2.75-inch axle offset. Compare the housing bolt pattern, bearing/axle retention, wheel pattern and center registration with the kit drawing, then check both service-caliper and EPB-motor clearance. Nominal 15-inch wheel diameter is only the starting point. 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.

A separate electric caliper at each rear wheel performs the parking function; it does not replace the hydraulic service circuit. Supplied EPB equipment includes the controller, switch/pigtail and wiring harness. Install the vehicle power, ground and accessory connections using DS1353. Use the system only for parking hold, not emergency stopping.

Our team at PMB Performance can help compare the existing brakes with this kit’s requirements. Drawing on over 20 years of parts experience, we ask for the vehicle year, axle identification and wheel-clearance details.

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.