Wilwood Front Mopar A-Body Nine-Inch-Drum Spindle Adapter Hub, Confirm Dimensions

This front adapter hub is associated with Mopar A-Body nine-inch-drum spindles. Wilwood publishes conflicting N dimensions and starting years, so confirm the exact spindle and supplied geometry before ordering. Bill Wood founded Wilwood Engineering in 1977, and the manufacturer is based in Camarillo, California. Wilwood designs and manufactures disc brake systems alongside calipers, master cylinders, rotors, fittings, brake lines and valves. The motorsport, street-performance and specialized ranges depend on components selected to work within a complete braking system.

Technical Details

• Manufacturer part number: 270-11527
• Wheel-stud thread: 1/2-20
• Rotor mounting arrangement: Adapter
• 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 = 1.170; D = 2.430; H = 1.620; M = 2.950; N = 1.960; P = 3.040; Q = 0.250. Use the manufacturer drawing for the reference faces.
• Manufacturer bearing / race references: Inner Bearing: 370-11555; Outer Bearing: 370-1239; Inner Hub Bearing - Race: 370-11554; Outer Hub Bearing - Race: 370-1238. 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 2.430 inch, DS719 2.433 inch; Dim N: product page 1.960 inch, DS719 1.83 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

Fitment & Compatibility

Use the exact conversion instructions to compare the spindle and hub dimensions. Confirm the bearing seats, rotor mounting arrangement and wheel-stud engagement before assembling the replacement. Application characteristics list 1965–1972 A-Body nine-inch-drum spindles, while DS719 starts in 1962. Confirm the exact spindle application with Wilwood.

Wilwood component specifications · Manufacturer reference DS719

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.