Wilwood Front Red Brake Kit - GM A/F/X-Body and Ridetech Pin Spindles (1960–1982 Applications), FNSL6R and Drilled/Slotted 14.00-inch Rotors

Red FNSL6R calipers and 14.00 x 1.10-inch SRP rings form the service-brake assembly in this front conversion. Aluminum hubs, bearings and studs are included, with the documented spindle modifications and track-width changes still required where applicable. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and manufactures disc brake systems, calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications. Select individual components to meet the requirements of the complete brake system.

Red calipers with SRP drilled-and-slotted 14-inch rotors are the pairing in this kit. It's a common pick for a street car where the brakes show through the wheels. Drilled faces are less suited to repeated track sessions. If you plan on track days, 140-9804-R keeps the red calipers and uses GT slotted rotors instead. Black calipers with these drilled rotors are 140-9804-D.

Technical Details

Calipers and friction components

• Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper
• Caliper finish: Red Powder Coat
• Body construction: Forged aluminum
• Piston material: stainless
• Caliper mounting: radial
• Hydraulic inlet: 1/8-27 NPT
• Included pad compound: BP-10
• Listed piston bore sizes: 1.62 / 1.12 / 1.12 in

Rotors and mounting dimensions

• Rotors: 14.00 in; 355.6 mm diameter x 1.10 in; 27.94 mm thick; vented Spec-37 Iron
• Friction faces: SRP Drilled & Slotted
• Rotor finish: Black Electro Coat
• Internal vanes: 72 curved
• Hats: aluminum; Black E-Coat; 1.750-inch hat offset
• Supplied hub wheel-stud patterns: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm
• Wheel studs: 1/2-20 thread; supplied with the hubs

Kit contents and separate parts

• Manufacturer part number: 140-9804-DR
• Supply: one kit with brake components for both sides of the front axle
• Mounting hardware: included
• Hubs: included with bearings and seals
• Spindles, master cylinder and brake booster: not included
• Hydraulic hoses: not included
• Includes hubs, wheel bearings and seals; 1/2-20 studs fit the selected 5 x 4.50 or 5 x 4.75-inch pattern.

Fitment & Compatibility

Match the exact spindle entry in the table below before choosing this 14-inch hub kit. Original GM A/F/X-body disc/drum installations and the listed Ridetech pin-spindle conversions have different selection requirements; the Ford, Mercury and Corvette entries require their specified modified hardware. Some early GM spindles need machining as illustrated in DS-565. Compared with the OE mounting face, the supplied hubs add 0.38 inch per side on drum-brake applications and 0.09 inch on disc-brake applications. Verify tire/fender clearance and choose the proper separate hydraulic lines. Nominal minimum wheel diameter: 18 in; 457.2 mm. Compare the actual wheel barrel and spokes with the linked clearance drawing; diameter alone does not establish fit.

Installation documents

• Installation instructions

WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.

PMB Performance has supported brake and restoration projects for more than 20 years. Share the vehicle and installed hardware with us for help selecting a compatible package.

Vehicle Applications

Application Notes

1. 14" Rotor
2. Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application.
3. This is a front service-brake kit. Select any rear parking-brake cable separately for the vehicle's actual rear brake system.
4. Line kit included (manufacturer): None
5. Front line-kit reference: 220-7056