Wilwood Red AERO6 Front Hub Kit with GT Slotted 14-Inch Rotors for Listed GM AFX ProSpindle Applications

Slotted Spec-37 front rotors and red AERO6 calipers mount to the specified GM AFX ProSpindles. Confirm 18-inch wheel clearance and hose length. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. It designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines. Its range serves motorsport, street-performance and specialized applications; each component must match the complete brake system.

Technical Details

• Application / axle position: Front Brake Kits - Street Performance; front position
• Rotor specification: 14.00 × 1.25 inches; Spec-37 Iron; vented; GT Slotted
• Supplied service-pad compound: BP-20
• Wheel-size starting point: 18 in; verify the complete clearance drawing
• Flexline inclusion: Not included; listed optional reference 220-7056 must be checked for the actual application
• Caliper family, piston count and finish: 6-piston AERO6; Red Powder Coat
• Hydraulic inlet: 1/8-27 NPT
• Wheel-face change: +.38 inches per side relative to the original wheel face; verify wheel and fender clearance
• Rotor / hub bolt-circle specification: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm
• Caliper mounting: Radial; piston material: stainless steel
• Items outside the kit: spindles, master cylinder, brake booster
• Supplied mounting components: mounting hardware, wheel hubs
• Manufacturer part number: 140-16209-R
• Quantity: Sold as a kit.

Fitment & Compatibility

Use this hub conversion with the specified Wilwood AFX 2-inch drop ProSpindle, not an original GM spindle or a second-generation ProSpindle selected by appearance. DS-1433 identifies spindle kit 831-15890, sold separately, and calls for the appropriate customer-supplied steering arm. Applications and model-year boundaries are retained in the table below. The catalog +0.38-inch hub change must be included in wheel and fender planning. Complete the installation with correctly routed compatible flexlines and verify pad clearance, bearing adjustment and front-to-rear brake balance.

Wilwood product specifications · Installation instructions

PMB Performance has more than 20 years of parts and fitment experience. Provide the model, year, installed spindle or hub, existing brake package and wheel measurements so we can help check the complete conversion.

Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.