Wilwood Black Rear Dynapro SRP Rotor Conversion with Parking Brake, Small Ford Axle Ends with 2.66-Inch Offset

Four aluminum pistons of 1.38-inch bore operate in each black Dynapro dust-boot caliper of this rear kit. SRP rotors and internal parking-brake hardware are combined for the Small Ford housing flange at a measured 2.66-inch axle offset. Bill Wood’s 1977 founding of Wilwood Engineering began a disc brake design and manufacturing business based in Camarillo, California. The range includes master cylinders, calipers, rotors, brake lines, valves and fittings for motorsport, street-performance and specialized vehicles. Component selection must consider the complete braking arrangement.

Technical Details

• Manufacturer part number: 140-13205-D
• Application and package: Rear Brake Kits - Street Performance; Rear Kits; Disc; Parking; Sold as a kit.
• Caliper assembly: Dynapro Dust-Boot; 4 pistons per caliper; Forged Aluminium body; Lug mount
• Piston and finish specification: Aluminum pistons; Black calipers; Black Powder Coat
• Hydraulic inlet: 1/8-27 NPT
• Wheel bolt pattern(s): 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
• Stud-hole / clearance provision: 0.52 in; 13.21 mm; diameter provision, not a thread designation
• Wheel diameter starting requirement: 15 in; 381 mm; verify the individual wheel against the installation drawing
• Rear axle-end interface: Small Ford; axle/flange offset 2.66 in; 67.56 mm
• Included mechanical components: Mounting hardware: Yes; hub(s): No; spindle(s): No
• Hydraulic components supplied: Master cylinder: No; brake booster: No; brake lines: No
• Specified pad compound: BP-10
• Rotor dimensions: 12.19 in; 309.63 mm outside diameter; 0.81 in; 20.57 mm thickness
• Rotor construction: Iron; Vented; SRP Drilled & Slotted

Fitment & Compatibility

Measure from the wheel side of the axle flange to the wheel side of the housing flange; this kit requires 2.66 inches. DS1001 also calls for rotor-register centering and clearance around the axle flange. Select matching hydraulic hoses and cable adaptation separately. The application table includes a 1990 Lincoln Town Car row, but Wilwood identifies this kit by axle flange and offset. Stock Town Car axle compatibility is not established; confirm the actual or custom axle measurements before purchase.

The installation drawing specifies a 2.80-inch axle register and the corresponding centering-adapter arrangement. Check the housing pattern and axle offset, then confirm the flange fits within the 6.61-inch diameter limit with its 0.050-inch x 45-degree chamfer.

Inspect shock-to-brake clearance as well as the axle dimensions; the installation instructions note that some shock arrangements may need modification or relocation.

Hydraulic hoses/fittings and parking-brake cables, adapters and cable hardware are not included. Choose a compatible cable arrangement for the internal parking brake; universal cable systems may require vehicle or cable modifications.

Kit may fit some 15" wheels. Check wheel clearance diagram in kit installation instructions before purchase.

Manufacturer References

• Wilwood exact kit specifications
• Wilwood installation instructions DS1001
• Axle measurement worksheet

Our team at PMB Performance has over 20 years of parts and fitment experience. The existing component number and brake-system details help us check the match.

Review the complete application table below with the year, submodel and installation qualifications above.