Wilwood Black FNSL6R Front Hub Brake Kit for Chevrolet Bel Air/Biscayne/Caprice/Impala/Brookwood/Corvette/Kingswood/Townsman/Estate, 12.88-Inch GT (1968–1982)

Bel Air, Biscayne, Caprice, Impala, Brookwood, Corvette, Kingswood, Townsman and Estate front hub brakes use GT rotors. Match spindle and wheel fit. The conversion combines the caliper, pad and rotor configuration specified for this axle and mounting arrangement. Wilwood Engineering was established in 1977 by Bill Wood and is based in Camarillo, California. Disc brake systems and components are its focus, from brake rotors and calipers to master cylinders, valves, brake lines and fittings. Its work spans motorsport, street-performance and specialized applications, with the complete brake system determining the correct individual components.

Technical Details

• Manufacturer part number: 140-17738
• Brake assembly: front conversion kit; Sold as a kit.
• Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper; Black Powder Coat
• Caliper mounting: Radial
• Included pad compound: BP-10
• Piston material: Stainless
• Hydraulic caliper inlet: 1/8-27 NPT
• Rotor dimensions and construction: 12.88 × 1.10 inches; Spec-37 Iron; GT Slotted
• Wheel-size reference: 17 in; the complete wheel-clearance drawing determines fit
• Included hub wheel patterns: 5 x 4.50; 5 x 4.75 inches; check the chosen wheel pattern
• Included hubs and studs: Aluminum hubs with wheel bearings, seals and mounting hardware; 1/2-20 wheel studs
• Hydraulic flexlines: Not included; supply suitable hoses and fittings separately
• Mounting hardware: Included; verify the installed fastener engagement
• Not included: spindles, master cylinder, brake booster

Fitment & Compatibility

Match the table below by year and spindle: 1968 Chevrolet Bel Air, Biscayne, Caprice and Impala entries exclude the single-piston power-disc arrangement; 1969–1970 full-size entries distinguish drum and disc spindles. Brookwood, Kingswood, Townsman and Estate coverage varies by year. Corvette coverage is the listed 1969–1982 C3 disc spindle. The supplied hubs have 5 × 4.50 and 5 × 4.75-inch wheel patterns with 1/2-20 studs. Select the correct pattern, verify tire position and compare the clearance drawing with the actual wheel. Compatible brake hoses are not included.

Wilwood product specifications · Wilwood installation and compatibility information · Wilwood installation and compatibility information

PMB Performance brings over 20 years of parts and fitment experience to component selection. Share the VIN, original brake package, axle position and wheel-clearance measurements so we can help check the configuration before ordering.

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