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Product details
Red XRS6R calipers and 14-inch SRP discs define this iron ProSpindle front kit. The included hub assemblies use two five-lug patterns, and their mounting position moves the wheels outward by the listed 0.68 inch per side. Wilwood Engineering designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines. Bill Wood founded the company in 1977; it is based in Camarillo, California, and serves motorsport, street-performance and specialized applications.
Fitment & Compatibility
This 14-inch front package fits the listed Chevrolet/GMC trucks when their suspension uses the specified Wilwood iron ProSpindles. It supplies the aluminum hubs and 1/2-20 studs; choose the hub's 5 x 4.50- or 5 x 4.75-inch stud pattern to match the wheels. Account for the published +0.68-inch outward wheel-mounting change on each side when checking the fenders and tires. The larger brake assembly also needs its own wheel-template check. Spindles and flexline kit 220-8307 are separate. Parking-brake cables are unrelated to this front service-brake installation. Consult the fitment table below for the individual year, model and equipment details. Nominal minimum wheel diameter: 18 in; 457.2 mm. The linked wheel-clearance diagram must confirm barrel and spoke clearance; wheel diameter alone does not guarantee fit.
Technical Details
Calipers and pads
- Calipers: XRS6R; 6 pistons
- Caliper finish: Red Powder Coat
- Body construction: Forged aluminum
- Pistons: stainless
- 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 coating/finish: Black Electro Coat
- Internal vanes: 72 curved
- Hats: Aluminum; Black E-Coat; 1.880-inch hat offset
- Hub wheel-stud patterns: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm
- Stud specification: 1/2-20 in
Kit contents and separate parts
- Manufacturer part number: 140-18299-DR
- Supply: one brake kit; components for both sides of the axle
- Mounting hardware: included
- Hubs: included
- Spindles, master cylinder and brake booster: not included
- Brake flexlines: not included
Installation documents
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.
With over 20 years of experience in brake systems and restoration, PMB Performance can help check the mounting arrangement, wheel clearance and remaining installation parts for your build.
Vehicle Applications
| Years | Make | Model | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|
| 1963-1967 | Chevrolet | C10 Panel | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1963-1974 | Chevrolet | C10 Pickup | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1963-1966 | Chevrolet | Suburban | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1963-1965 | GMC | 1000 Series | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1963-1966 | GMC | Suburban | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1966 | GMC | 1000 | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1967-1986 | Chevrolet | C10 Suburban | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1967-1974 | GMC | C15/C1500 Suburban | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1967-1974, 1979-1986 | GMC | C1500 Pickup | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1970-1974 | Chevrolet | Blazer | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1970-1982 | GMC | Jimmy | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1975-1986 | Chevrolet | C10 | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1975-1982 | Chevrolet | K5 Blazer | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1975-1978 | GMC | C15 Suburban | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1979-1986 | GMC | C1500 Suburban | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1987 | Chevrolet | R10 Pickup | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1987 | Chevrolet | R10 Suburban | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1987 | GMC | R1500 Pickup | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
| 1987 | GMC | R1500 Suburban | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Front Kit | 1, 2, 3 |
Application Notes
- This is a front service-brake kit. Any rear parking-brake cable is selected separately for the vehicle's rear brake system.
- Line kit included (manufacturer): None
- Front line-kit reference: 220-8307
