Wilwood Front Dynapro 6A Conversion with Red Calipers, Drilled Rotors & Hubs, Chrysler / Dodge / Plymouth Bodies

This Wilwood Dynapro 6A front brake kit pairs red 6-piston calipers with 12.19-inch srp drilled & slotted brake rotors for Chrysler / Dodge / Plymouth A/B/E/F/J-Body (1973–1989). The package must match the documented mounting arrangement and wheel clearance before the original brakes are removed. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. Its disc-brake systems and components serve motorsport, street-performance and specialized applications. The range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected to suit the requirements of the complete system.

Technical Details

• Manufacturer part number: 140-17321-DR; supplied as an axle kit.
• Service calipers: Dynapro 6; 6 pistons per caliper; Red Powder Coat; lug mounting; stainless pistons.
• Included wheel hubs: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm wheel patterns; 1/2-20 studs. Check the selected pattern and bearing arrangement before assembly.
• Brake rotor size: 12.19-inch outside diameter × 0.81-inch thickness; vented friction section.
• Supplied friction pads: BP-10 compound; match operating conditions to the intended use.
• Hydraulic lines: Hydraulic flexlines and fittings are not included; select compatible lines for the complete installation.
• Wheel envelope: 15-inch minimum nominal wheel diameter; verify the entire wheel-clearance drawing, including spoke and barrel shape.
• Hardware and retained components: Mounting hardware supplied; wheel hubs included; spindles, master cylinder and brake booster are not included.
• Hydraulic sizing: cataloged bore sizes 1.62, 1.38, 1.38 inches; piston area 5.06 square inches; inlet 1/8-27 NPT.
• Rotor specification: Material: Iron; Type: SRP Drilled Rotor; Style: SRP Drilled & Slotted; Surface Finish: Black Electro Coat.

Fitment & Compatibility

DS1536 specifies the 1973–1983 Chrysler, Dodge and Plymouth A/B/E/F/J-body disc-brake spindles. The table below also lists later applications through 1989; confirm that their spindle and bearing arrangement match the drawing before ordering. The supplied aluminum hubs carry 1/2-20 studs. This front brake kit does not include a master cylinder or require a parking-brake cable; those unrelated rear-system notes do not define the front installation. Listed models include Challenger, Charger, Coronet, Dart, Barracuda, Cuda, Duster, Roadrunner, Satellite, Scamp, Valiant, Cordoba, Fury, Aspen, Volare, Lebaron, Diplomat, Monaco, Magnum, New Yorker, Newport, St. Regis, Mirada, Imperial, Caravelle, Fifth Avenue. Verify each row rather than treating the complete year span as fitment for every body.

A VIN helps identify the original specification; measured hardware matters after a conversion. PMB Performance draws on more than 20 years of experience when reviewing those details.

Review Installation instructions for the complete installation and clearance requirements.

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.