Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This Wilwood Mustang front hub is the hat-mount configuration specified for A13 inner and A12 outer bearing sets. It gives the 1970-1973 spindle application a separate wheel hub and brake-hat interface, with both listed five-lug wheel patterns. Wilwood's range extends from calipers and brake rotors to master cylinders, valves, fittings, and brake lines, all selected to meet the requirements of a complete brake system. Founded by Bill Wood in 1977, Wilwood Engineering is based in Camarillo, California and designs and manufactures disc brake systems for motorsport, street-performance, and specialized uses.
Technical Details
- Manufacturer part number: 270-9320
- Material: Aluminum
- Finish: Bare
- Position: Front
- Wheel bolt pattern: 5 x 4.75 in; 5 x 4.50 in
- Wheel stud thread: 1/2-20
- Included components: Bearing races and screw-on aluminum cap
- Weight: 3.3 lb
- Inner bearing specification: 370-0884 / A13 set (fitment reference)
- Outer bearing specification: 370-0882 / A12 set (fitment reference)
Fitment & Compatibility
Check the bearing series against the installed spindle; a second Mustang hub uses different bearings despite similar outside dimensions. Select the brake hat and verify its rotor position. Three 1/4-20 retention holes use kit 230-7032; bearing rollers and brake parts must be matched separately.
Manufacturer Documents
The photograph represents the product family. Match the ordered configuration using the part number and specifications above.
For help matching the component to your assembly, contact PMB Performance with the brake-kit details and dimensions. Our team has over 20 years of experience working through parts and fitment questions.
