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Product details
Red six-piston calipers and 16-inch SRP rotors identify this TX6R front brake kit for the C10-family aluminum ProSpindle installation. Its rotor hats have the listed five-lug drilling options, but the vehicle’s actual hub and wheel combination still governs assembly. Founded in 1977 by Bill Wood and based in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and components for motorsport, street-performance and specialized applications. Its range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected to work together within a properly matched brake system.
Technical Details
- Manufacturer part number: 140-18123-DR
- Service calipers: TX6R; 6 pistons; radial mount; Red Powder Coat
- Brake rotors: 16.00 x 1.38 inches; Spec-37 Iron; SRP Drilled & Slotted; vented construction
- Pads: BP-22; piston material: Stainless
- Caliper body material: Forged aluminum
- Hydraulic inlet: 1/8-27 NPT
- Rotor/hat wheel-stud clearance pattern(s): 5 x 4.75 in; 5 x 120.65 mm; 5 x 5 in; 5 x 127 mm; 5 x 5.5 in; 5 x 139.7 mm; match the installed hub/axle pattern
- Hydraulic brake hoses: not included; select the correct application-specific lines/fittings
- Wheel clearance: 20-inch wheels may fit; verify the manufacturer’s complete caliper/rotor template for the installed wheel
- Supplied as one kit with mounting hardware; spindles, hubs, master cylinder and booster are not included
Fitment & Compatibility
Requires Wilwood C10 Aluminum Modular Pro Drop Spindles and the listed five-lug configuration. It will not fit original-equipment spindles. Applications span the listed C10-family Chevrolet/GMC pickups, Suburbans and related utility models; use every model and year limitation in the table.
Relative to the original brake/spindle assembly, wheel offset changes by +0.41 inch outboard for 1963–1970 applications and -0.06 inch inboard for 1971–1987. Hydraulic hoses are separate: select the appropriate application from the manufacturer’s listed line-kit references rather than assuming all are required.
Confirm the applicable vehicle entry and all numbered notes in the fitment table below.
Manufacturer Resources
- Exact Wilwood kit specifications and wheel-clearance information
- Installation instructions and component list
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 parts and fitment experience, PMB Performance can help review the intended brake installation. Provide your VIN, wheel measurements and any modified axle or spindle details when asking about compatibility.
Vehicle Applications
| Years | Make | Model | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|
| 1963-1967 | Chevrolet | C10 Panel | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1963-1974 | Chevrolet | C10 Pickup | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1963-1966 | Chevrolet | Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1963-1965 | GMC | 1000 Series | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1963-1966 | GMC | Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1966 | GMC | 1000 | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1967-1986 | Chevrolet | C10 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1967-1974 | GMC | C15/C1500 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1967-1974, 1979-1986 | GMC | C1500 Pickup | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1970-1974 | Chevrolet | Blazer | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1970-1982 | GMC | Jimmy | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1975-1986 | Chevrolet | C10 | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1975-1982 | Chevrolet | K5 Blazer | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1975-1978 | GMC | C15 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1979-1986 | GMC | C1500 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1987 | Chevrolet | R10 Pickup | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1987 | Chevrolet | R10 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1987 | GMC | R1500 Pickup | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1987 | GMC | R1500 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
Application Notes
- Brake kits require Wilwood C10 Aluminum Modular Pro Drop Spindles to fit. Will not fit original equipment spindles.
- Brake kit wheel offset is +0.41 inch outboard from stock OE brakes and spindle for 1963–1970; wheel offset is -0.06 inch inboard for 1971–1987.
- This front TX6R kit contains no parking-brake assembly or parking-brake cable; DS1646 specifies the front service-brake installation.
- Line kit included (manufacturer): None
- Front line-kit reference: 220-7056, 220-11237, 220-12168
