Wilwood Black Superlite 6R Front Brake Conversion with 14-Inch GT Rotors for Listed GM and Ridetech Pin Spindles

Black six-piston calipers, hubs and slotted 14-inch rotors suit listed spindle installations. Professional machining is required where specified. Founded in 1977 under Bill Wood, Wilwood Engineering operates from Camarillo, California. The company designs and manufactures disc braking systems and components, including calipers, master cylinders, brake rotors, fittings, valves and brake lines. Its motorsport, specialized and street-performance range requires individual parts matched to the complete braking arrangement.

This kit uses dust-sealed Superlite 6R calipers in black, with GT slotted 14-inch rotors. The dust seals keep road grit away from the pistons, a plus on a car driven in all weather. Plan on 18-inch wheels at minimum and check yours against the clearance drawing. The same kit comes with red calipers as 140-15409-R, and with drilled-and-slotted rotors as 140-15409-D.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-15409
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: No
• Rotor Outside Diameter: 14.00 in; 355.6 mm
• Rotor Thickness: 1.10 in; 27.94 mm
• Rotor Material: Spec-37 Iron
• Surface Type: GT Slotted
• Rotor construction: Vented
• Bolt Circle Diameter: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm
• Included wheel-stud thread: 1/2-20 thread
• Rotor surface finish: Black Electro Coat
• Rotor vane / construction reference: 72 CV
• Hat material: Aluminum
• Hat finish: Black E-Coat
• Hat offset (not axle-flange offset): 1.750 in
• Pistons per service caliper: 6
• Service-caliper piston material: Stainless
• Service-caliper mounting: Radial
• Caliper body construction: Forged aluminum
• Caliper Color: Black
• Caliper Finish: Black Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: dust-sealed Superlite 6R
• Pad compound: BP-10
• Minimum wheel diameter guidance; verify clearance drawing: 18 in; 457.2 mm
• Spindle Included: No
• Mounting Hardware Included: Yes
• Separate wheel hubs included: Yes

Fitment & Compatibility

Compatibility depends on the actual spindle arrangement in the table. Some entries use the specified original GM disc or drum spindle; other GM, Ford and Mercury vehicles require the listed Ridetech pin-spindle conversion. Do not infer original-spindle compatibility from the broad model list. DS-1297 calls out machining on applicable spindles: upper anchor-hole drilling/tapping and, where directed, lower spindle/steering-arm hole enlargement, plus caliper-ear clearance. Have the relevant spindle inspected and machined by a qualified professional. The kit includes aluminum hubs, bearings, seals and 1/2-20 studs, with dual 5 × 4.50/4.75-inch wheel patterns and a 0.38-inch outward wheel-face change. Hoses are separate; the 220-7056 reference requires the correct length and fittings for the actual vehicle. Use the wheel template with the nominal 18-inch minimum guidance.

Listed models: Falcon; Comet; Chevy II; Corvette; Skylark; Special; Sportwagon; Chevelle; El Camino; Malibu; Mustang; 442; Cutlass; F85; Vista Cruiser; Acadian; Beaumont; GTO; LeMans; Tempest; Gran Sport; F-100; Camaro; Cutlass Supreme; Firebird; GS 350; GS 400; Nova; Grand Prix; GS; GS 455; Monte Carlo; Sprint; Ventura; Apollo; Omega. See the supplied table below for each year, submodel and equipment condition.

Wilwood product specifications · Installation instructions

Contact PMB Performance with the brake-kit identification and measurements for help selecting the part. Our team brings over 20 years of experience.

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