Wilwood Front GM G-Body Hub for Vented-Rotor Adapters (1980–1987)

This Wilwood front wheel hub is configured for a vented-rotor brake layout on the specified 1980-1987 GM G-Body spindle. A separate adapter joins the rotor to the hub, while dual bolt circles provide the listed five-lug wheel mounting choices. Wilwood Engineering began in 1977 under founder Bill Wood and is based in Camarillo, California. The company designs and manufactures disc brakes, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized uses. Individual parts must be matched to the rest of the brake system.

Technical Details

• Manufacturer part number: 270-7309
• 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
• Rotor adapter patterns: 6 x 6.25 in; 8 x 7.00 in
• Weight: 3.200 lb
• Inner bearing specification: 370-0879 / A6 set (fitment reference)
• Outer bearing specification: 370-0933 / A34 set (fitment reference)

Fitment & Compatibility

Check the actual G-Body spindle and bearing dimensions, including any aftermarket spindle changes. Rotor adapter options are 300-3307 for the six-bolt pattern and 300-3099 for the eight-bolt pattern. Match the offset to the caliper bracket rather than selecting only by vehicle year.

Manufacturer Documents

• Wilwood DS719 technical document
• Wilwood product information

The photograph represents the product family. Match the ordered configuration using the part number and specifications above.

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