Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Black Dynapro 6 calipers bring six-piston actuation to the 12.19-inch Roadster Shop front package. The GT slotted Spec-37 rotors are 0.81 inch thick and mount to aluminum hats, with BP-10 pads supplied for the lug-mount calipers. Founded by Bill Wood in 1977 and based in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems for motorsport, street-performance and specialized applications. Its components include calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected to suit the complete brake system.
Technical Details
Rotors and mounting dimensions
- Rotors: 12.19 in; 309.63 mm diameter x 0.81 in; 20.57 mm thick; vented Spec-37 Iron
- Friction faces: GT Slotted
- Rotor coating/finish: Black Electro Coat
- Internal vanes: 36 curved
- Hats: Aluminum; Black E-Coat; 1.770-inch hat offset
- Rotor/hat wheel-stud clearance patterns: 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
Calipers and pads
- Calipers: Dynapro 6; 6 pistons
- Caliper finish: Black Powder Coat
- Body construction: Forged aluminum
- Pistons: stainless
- Mounting: lug
- Hydraulic inlet: 1/8-27 NPT
- Included pad compound: BP-10
- Listed piston bore sizes: 1.62 / 1.38 / 1.38 in
Kit contents and separate parts
- Manufacturer part number: 140-18365
- Supply: one brake kit; components for both sides of the axle
- Mounting hardware: included
- Hubs: not included
- Spindles, master cylinder and brake booster: not included
- Brake flexlines: not included
Fitment & Compatibility
For the Roadster Shop Mustang II front upright, using the five-on-4.75-inch hub arrangement specified by Wilwood. This Dynapro 6 package uses 12.19-inch rotor assemblies, so match its wheel diagram rather than a different Roadster Shop brake option. Verify the steering-arm bracket installation and use the register adapters and shims for alignment. The original Ford vehicle name or year does not establish compatibility with this custom spindle. No hubs, spindles or flexlines are supplied; select hoses that remain clear and slack enough across steering and suspension travel. Nominal minimum wheel diameter: 15 in; 381 mm. The linked wheel-clearance diagram must confirm barrel and spoke clearance; wheel diameter alone does not guarantee fit.
Installation documents
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.
PMB Performance brings more than 20 years of brake and restoration experience to parts selection. Contact us with the installed spindle or axle details if you need help matching this kit.
