Wilwood Front Mopar A-Body Rotor-Adapter Hub, Confirm Spindle Year Range

A vented-rotor adapter, rather than a directly mounted hat, connects to this Mopar A-Body front hub. Its application-year descriptions differ between Wilwood references and must be checked against the actual spindle. Since its founding by Bill Wood in 1977, Wilwood Engineering has focused on disc brake system design and manufacturing. Based in Camarillo, California, it offers calipers, rotors, brake lines, master cylinders, fittings and valves for motorsport, street-performance and specialized installations. Choose components to satisfy the requirements of the entire braking system.

Technical Details

• Manufacturer part number: 270-11539
• Rotor interface: 5 x 3.88; this is not the wheel bolt circle
• Compatible rotor-adapter output interface(s): 6 x 6.25, 8 x 7.00; match the actual adapter and rotor
• Product-page drawing references (inches): A = 1.145; D = 2.330; H = 1.510; M = 2.970; N = 1.950; P = 3.240; Q = 0.380. Use the manufacturer drawing for the reference faces.
• Manufacturer bearing / race references: Inner Bearing: 370-0879; Outer Bearing: 370-0877; Inner Hub Bearing - Race: 370-0878; Outer Hub Bearing - Race: 370-0876. References identify compatible service parts and do not mean all bearings are included.
• Related assembly part reference(s): 300-3307; 300-3099; check the kit contents and obtain any separately required parts
• Conflicting published dimensions: Dim D: product page 2.330 inch, DS719 2.332 inch. Confirm the supplied hub and reference faces before using either value.
• Package: One hub; the compatible rotor, rotor adapter or hat and its attachment hardware are selected for the complete conversion
• Hub closure and races: Manufacturer describes included bearing races and screw-on aluminum cap; confirm the supplied assembly and obtain the compatible bearings separately
• Component: Hub - Vented Rotor Offset
• Position in the specified assembly: Front
• Material: Aluminum
• Finish: Bare
• Wheel mounting pattern(s): 5 x 4.50, 5 x 4.75 inches; separate from rotor or drive-flange attachment
• Wheel-stud thread: 1/2-20
• Rotor mounting arrangement: Adapter

Fitment & Compatibility

Select the replacement around the existing spindle, bearing and rotor assembly. The vehicle application describes a brake conversion and does not establish an original-equipment hub replacement. Application characteristics list 1973–1976 A-Body disc spindles, while DS719 identifies a 1965–1972 A-Body ten-inch-drum application. Confirm the exact spindle application with Wilwood.

Wilwood component specifications · Manufacturer reference DS719

PMB Performance can help identify the required brake component with over 20 years of parts experience. Send the kit details and original-part measurements.