Wilwood Forged XRS4R Big Brake Rear Parking Brake Kit
Forged XRS4R rear disc kits provide the ultimate Big Brake solution for popular muscle car rear axles that require a parking brake. XRS4R four piston calipers, 13” or 14” two-piece rotors, and high performance BP-10 compound pads provide optimized and balanced braking to compliment front big brake upgrades on all types of custom, show and high performance street machines. The neatly hidden internal shoe system provides a clean installation with superior static holding power for parking. Optional caliper finishes and rotor designs allow builders to personalize the style and performance for every application.
4 Pistons
Per caliper
12.88" x 1.10"
Rotor diameter x thickness
17" Wheels
Minimum wheel diameter
60 lb
Weight (Wilwood package data)
Documents
What's Included
Wilwood's application data lists these main components for this kit:
- Calipers (140-18297, 140-18297-D): Forged XRS4R, 120-17201-BK
- Calipers (140-18297-DR, 140-18297-R): Forged XRS4R, 120-17201-RD
- Rotors (140-18297, 140-18297-R): GT 48 Curved Vane, 12.88" x 1.1", 160-12962-GTB / 160-12961-GTB
- Rotors (140-18297-D, 140-18297-DR): SRP Drilled Rotor, 12.88" x 1.1", 160-13544-BK / 160-13543-BK
- Pads: pad type 10416, BP-10 compound
- Hat: 170-13909
Specifications
Part number
140-18297, 140-18297-D, 140-18297-DR, 140-18297-R
Series
Forged XRS4R Big Brake Rear Parking Brake Kit
Kit type
Rear Brake Kits - Street Performance
Rotor diameter
12.88"
Rotor thickness
1.10"
Rotor type
Vented
Rotor face
GT Slotted (140-18297, 140-18297-R); SRP Drilled & Slotted (140-18297-D, 140-18297-DR)
Rotor material
Spec-37 Iron
Caliper mount
Radial
Pistons per caliper
4
Piston material
Stainless
Caliper material
Forged Aluminium
Caliper color
Black (140-18297, 140-18297-D); Red (140-18297-DR, 140-18297-R)
Caliper finish
Black Powder Coat (140-18297, 140-18297-D); Red Powder Coat (140-18297-DR, 140-18297-R)
Inlet thread
1/8-27 NPT
Bolt pattern
5 x 4.5" and 5 x 4.75" and 5 x 5"
Stud size
0.520"
Minimum wheel diameter
17"
Flange offset
2.42"
Flange type
Large Chevy C10
Caliper
Forged XRS4R
Pads
Pad type 10416, BP-10 compound
Part Numbers in This Listing
| Part # | Option | Wilwood description | Weight | UPC |
|---|---|---|---|---|
| 140-18297 | Black / Plain Face | KIT,REAR,DISC/DRUM,XRS4R,C10 1971-87/BLAZER 1971-82,5 LUG,2.42 OFF,12.88,GT | 60 lb | 889545127256 |
| 140-18297-D | Black / Drilled & Slotted | KIT,REAR,DISC/DRUM,XRS4R,C10 1971-87/BLAZER 1971-82,5 LUG,2.42,12.88,DRILL | 60 lb | 889545127270 |
| 140-18297-DR | Red / Drilled & Slotted | KIT,REAR,DISC/DRUM,XRS4R,C10 1971-87/BLAZER 1971-82,5 LUG,2.42,12.88,DRILL,RED | 60 lb | 889545127287 |
| 140-18297-R | Red / Plain Face | KIT,REAR,DISC/DRUM,XRS4R,C10 1971-87/BLAZER 1971-82,5 LUG,2.42,12.88,GT,RED | 60 lb | 889545127294 |
Fitment
Wilwood's application data for this kit.
| Minimum wheel diameter | 17" |
| Position | Rear Kit |
| Years | Make | Model | Details |
|---|---|---|---|
| 1969-1970 | Chevrolet | Blazer | 4 x 4 |
| 1970 | Chevrolet | Blazer | 4 x 2 |
| 1970-1974 | Chevrolet | Blazer | Vehicles using CPP 2" Drop Spindle |
| 1970-1974 | Chevrolet | Blazer | Vehicles using Ridetech Drop Spindle |
| 1970-1974 | Chevrolet | Blazer | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1970-1974 | Chevrolet | Blazer | Vehicles using Wilwood Iron ProSpindles |
| 1971-1972 | Chevrolet | Blazer | 4 x 2 w/ OE Disc Brake Spindle |
| 1973-1974 | Chevrolet | Blazer | 4 x 2, OE Disc Brake Spindle |
| 1973-1974 | Chevrolet | Blazer | Vehicles using DSE Drop Spindle. |
| 1975-1980 | Chevrolet | C10 | Disc Brake Spindle (OE) |
| 1975-1986 | Chevrolet | C10 | Vehicles using CPP 2" Drop Spindle |
| 1975-1986 | Chevrolet | C10 | Vehicles using DSE Drop Spindle. |
| 1975-1986 | Chevrolet | C10 | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1975-1986 | Chevrolet | C10 | Vehicles using Wilwood Iron ProSpindles |
| 1975-1986 | Chevrolet | C10 | w/ Ridetech Drop Spindle |
| 1981-1986 | Chevrolet | C10 | With 1.00" Wide Front Rotor |
| 1981-1986 | Chevrolet | C10 | With 1.25" Wide Front Rotor |
| 1963-1967 | Chevrolet | C10 Panel | 4 x 2 |
| 1963-1967 | Chevrolet | C10 Panel | Vehicles using CPP 2" Drop Spindle |
| 1963-1967 | Chevrolet | C10 Panel | Vehicles using Ridetech Drop Spindle |
| 1963-1967 | Chevrolet | C10 Panel | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1963-1967 | Chevrolet | C10 Panel | Vehicles using Wilwood Iron ProSpindles |
| 1963-1970 | Chevrolet | C10 Pickup | 4 x 2 |
| 1963-1974 | Chevrolet | C10 Pickup | Vehicles using CPP 2" Drop Spindle |
| 1963-1974 | Chevrolet | C10 Pickup | Vehicles using Ridetech Drop Spindle |
| 1963-1974 | Chevrolet | C10 Pickup | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1963-1974 | Chevrolet | C10 Pickup | Vehicles using Wilwood Iron ProSpindles |
| 1965, 1967, 1969 | Chevrolet | C10 Pickup | w/ Ridetech Drop Spindle |
| 1971-1974 | Chevrolet | C10 Pickup | Disc Brake Spindle (OE) |
| 1973-1974 | Chevrolet | C10 Pickup | Vehicles using DSE Drop Spindle. |
| 1967-1970 | Chevrolet | C10 Suburban | 4 x 2 |
| 1967-1986 | Chevrolet | C10 Suburban | Vehicles using CPP 2" Drop Spindle |
| 1967-1986 | Chevrolet | C10 Suburban | Vehicles using Ridetech Drop Spindle |
| 1967-1986 | Chevrolet | C10 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1967-1986 | Chevrolet | C10 Suburban | Vehicles using Wilwood Iron ProSpindles |
| 1971-1980 | Chevrolet | C10 Suburban | Disc Brake Spindle (OE) |
| 1973-1986 | Chevrolet | C10 Suburban | Vehicles using DSE Drop Spindle. |
| 1981-1986 | Chevrolet | C10 Suburban | With 1.00" Wide Front Rotor |
| 1981-1986 | Chevrolet | C10 Suburban | With 1.25" Wide Front Rotor |
| 1975-1987 | Chevrolet | G10 | Beauville, Beauville |
| 1975-1987 | Chevrolet | G10 | Chevy Van, Chevy Van |
| 1975-1987 | Chevrolet | G10 | Sportvan, Sportvan |
| 1983 | Chevrolet | G10 | |
| 1983-1984, 1986-1987 | Chevrolet | G10 | Bonaventure, Bonaventure |
| 1973-1974 | Chevrolet | G10 Van | All |
| 1985-1987 | Chevrolet | G20 | Beauville, Beauville |
| 1985-1987 | Chevrolet | G20 | Chevy Van, Chevy Van |
| 1985-1987 | Chevrolet | G20 | Sportvan, Sportvan |
| 1973-1974 | Chevrolet | G20 Van | All |
| 1975-1980 | Chevrolet | K5 Blazer | 4 x 2, OE Disc Brake Spindle |
| 1975-1982 | Chevrolet | K5 Blazer | Vehicles using CPP 2" Drop Spindle |
| 1975-1982 | Chevrolet | K5 Blazer | Vehicles using DSE Drop Spindle. |
| 1975-1982 | Chevrolet | K5 Blazer | Vehicles using Ridetech Drop Spindle |
| 1975-1982 | Chevrolet | K5 Blazer | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1975-1982 | Chevrolet | K5 Blazer | Vehicles using Wilwood Iron ProSpindles |
| 1981-1982 | Chevrolet | K5 Blazer | 4 x 2 |
| 1987 | Chevrolet | R10 Pickup | 4 x 2 w/ 1.00" Wide Front Rotor |
| 1987 | Chevrolet | R10 Pickup | 4 x 2 w/ 1.25 Wide Front Rotor |
| 1987 | Chevrolet | R10 Pickup | Vehicles using CPP 2" Drop Spindle |
| 1987 | Chevrolet | R10 Pickup | Vehicles using DSE Drop Spindle. |
| 1987 | Chevrolet | R10 Pickup | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1987 | Chevrolet | R10 Pickup | Vehicles using Wilwood Iron ProSpindles |
| 1987 | Chevrolet | R10 Pickup | w/ Ridetech Drop Spindle |
| 1987 | Chevrolet | R10 Suburban | 4 x 2 w/ 1.00" Wide Front Rotor |
| 1987 | Chevrolet | R10 Suburban | 4 x 2 w/ 1.25 Wide Front Rotor |
| 1987 | Chevrolet | R10 Suburban | Vehicles using CPP 2" Drop Spindle |
| 1987 | Chevrolet | R10 Suburban | Vehicles using DSE Drop Spindle. |
| 1987 | Chevrolet | R10 Suburban | Vehicles using Ridetech Drop Spindle |
| 1987 | Chevrolet | R10 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1987 | Chevrolet | R10 Suburban | Vehicles using Wilwood Iron ProSpindles |
| 1963-1966 | Chevrolet | Suburban | 4 x 2 |
| 1963-1966 | Chevrolet | Suburban | 4 x 4 |
| 1963-1966 | Chevrolet | Suburban | Vehicles using CPP 2" Drop Spindle |
| 1963-1966 | Chevrolet | Suburban | Vehicles using Ridetech Drop Spindle |
| 1963-1966 | Chevrolet | Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1963-1966 | Chevrolet | Suburban | Vehicles using Wilwood Iron ProSpindles |
| 1966 | GMC | 1000 | 4 x 2 |
| 1966 | GMC | 1000 | 4 x 4 |
| 1966 | GMC | 1000 | Vehicles using CPP 2" Drop Spindle |
| 1966 | GMC | 1000 | Vehicles using Ridetech Drop Spindle |
| 1966 | GMC | 1000 | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1966 | GMC | 1000 | Vehicles using Wilwood Iron ProSpindles |
| 1963-1965 | GMC | 1000 Series | 4 x 2 |
| 1963-1965 | GMC | 1000 Series | Vehicles using CPP 2" Drop Spindle |
| 1963-1965 | GMC | 1000 Series | Vehicles using Ridetech Drop Spindle |
| 1963-1965 | GMC | 1000 Series | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1963-1965 | GMC | 1000 Series | Vehicles using Wilwood Iron ProSpindles |
| 1965 | GMC | 1000 Series | 4 x 4 |
| 1975-1978 | GMC | C15 | Vehicles using CPP 2" Drop Spindle |
| 1975-1978 | GMC | C15 | Vehicles using Ridetech Drop Spindle |
| 1975-1978 | GMC | C15 Suburban | Disc Brake Spindle (OE) |
| 1975-1978 | GMC | C15 Suburban | Vehicles using CPP 2" Drop Spindle |
| 1975-1978 | GMC | C15 Suburban | Vehicles using DSE Drop Spindle. |
| 1975-1978 | GMC | C15 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1975-1978 | GMC | C15 Suburban | Vehicles using Wilwood Iron ProSpindles |
| 1967-1970 | GMC | C15/C1500 Suburban | 4 x 2 |
| 1967-1974 | GMC | C15/C1500 Suburban | Vehicles using CPP 2" Drop Spindle |
| 1967-1974 | GMC | C15/C1500 Suburban | Vehicles using Ridetech Drop Spindle |
| 1967-1974 | GMC | C15/C1500 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1967-1974 | GMC | C15/C1500 Suburban | Vehicles using Wilwood Iron ProSpindles |
| 1973-1974 | GMC | C15/C1500 Suburban | Vehicles using DSE Drop Spindle. |
| 1967-1970 | GMC | C1500 Pickup | 4 x 2 |
| 1967-1974, 1979-1986 | GMC | C1500 Pickup | Vehicles using CPP 2" Drop Spindle |
| 1967-1974, 1979-1986 | GMC | C1500 Pickup | Vehicles using Ridetech Drop Spindle |
| 1967-1974, 1979-1986 | GMC | C1500 Pickup | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1967-1974, 1979-1986 | GMC | C1500 Pickup | Vehicles using Wilwood Iron ProSpindles |
| 1971-1974, 1979-1980 | GMC | C1500 Pickup | Disc Brake Spindle (OE) |
| 1973-1974, 1979-1986 | GMC | C1500 Pickup | Vehicles using DSE Drop Spindle. |
| 1981-1986 | GMC | C1500 Pickup | 4 x 2 w/ 1.00" Wide Front Rotor |
| 1981-1986 | GMC | C1500 Pickup | 4 x 2 w/ 1.25 Wide Front Rotor |
| 1979-1980 | GMC | C1500 Suburban | Disc Brake Spindle (OE) |
| 1979-1986 | GMC | C1500 Suburban | Vehicles using CPP 2" Drop Spindle |
| 1979-1986 | GMC | C1500 Suburban | Vehicles using DSE Drop Spindle. |
| 1979-1986 | GMC | C1500 Suburban | Vehicles using Ridetech Drop Spindle |
| 1979-1986 | GMC | C1500 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1979-1986 | GMC | C1500 Suburban | Vehicles using Wilwood Iron ProSpindles |
| 1981-1986 | GMC | C1500 Suburban | 4 x 2 w/ 1.00" Wide Front Rotor |
| 1981-1986 | GMC | C1500 Suburban | 4 x 2 w/ 1.25 Wide Front Rotor |
| 1970 | GMC | Jimmy | 4 x 2 |
| 1970 | GMC | Jimmy | 4 x 4 |
| 1970-1982 | GMC | Jimmy | Vehicles using CPP 2" Drop Spindle |
| 1970-1982 | GMC | Jimmy | Vehicles using Ridetech Drop Spindle |
| 1970-1982 | GMC | Jimmy | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1970-1982 | GMC | Jimmy | Vehicles using Wilwood Iron ProSpindles |
| 1971-1982 | GMC | Jimmy | 4 x 2 Disc Brake Spindle (OE) |
| 1973-1982 | GMC | Jimmy | Vehicles using DSE Drop Spindle. |
| 1971-1972 | GMC | P15 Series | 4 x 2 w/ OE Disc Brake Spindle |
| 1973-1980 | GMC | P15 Series | All |
| 1987 | GMC | R1500 Pickup | 4 x 2 w/ 1.00" Wide Front Rotor |
| 1987 | GMC | R1500 Pickup | 4 x 2 w/ 1.25 Wide Front Rotor |
| 1987 | GMC | R1500 Pickup | Vehicles using CPP 2" Drop Spindle |
| 1987 | GMC | R1500 Pickup | Vehicles using DSE Drop Spindle. |
| 1987 | GMC | R1500 Pickup | Vehicles using Ridetech Drop Spindle |
| 1987 | GMC | R1500 Pickup | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1987 | GMC | R1500 Pickup | Vehicles using Wilwood Iron ProSpindles |
| 1987 | GMC | R1500 Suburban | 4 x 2 w/ 1.00" Wide Front Rotor |
| 1987 | GMC | R1500 Suburban | 4 x 2 w/ 1.25 Wide Front Rotor |
| 1987 | GMC | R1500 Suburban | Vehicles using DSE Drop Spindle. |
| 1987 | GMC | R1500 Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1987 | GMC | R1500 Suburban | Vehicles using Wilwood Iron ProSpindles |
| 1963-1966 | GMC | Suburban | 4 x 2 |
| 1963-1966 | GMC | Suburban | Vehicles using CPP 2" Drop Spindle |
| 1963-1966 | GMC | Suburban | Vehicles using Ridetech Drop Spindle |
| 1963-1966 | GMC | Suburban | Vehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only |
| 1963-1966 | GMC | Suburban | Vehicles using Wilwood Iron ProSpindles |
| 1965 | GMC | Suburban | 4 x 4 |
C-10 / C-15 Truck - 5 lug only.
Parts in This Kit and Recommended Lines
Caliper in this kit
Forged XRS4R Radial Mount
120-17201-BK ›
Caliper in this kit
Forged XRS4R Radial Mount
120-17201-RD ›
Rotor in this kit
GT 48 Curved Vane Rotor
160-12962-GTB ›
Rotor in this kit
GT 48 Curved Vane Rotor
160-12961-GTB ›
Rotor in this kit
SRP Drilled Performance Rotor
160-13544-BK ›
Rotor in this kit
SRP Drilled Performance Rotor
160-13543-BK ›
Hat in this kit
Parking Brake Hat - Standard
170-13909 ›
Frequently Asked Questions
Tap a question to see the answer.
What vehicles does this kit fit?
See the Fitment section above for Wilwood's application list for this kit.
What is the smallest wheel this kit fits?
Wilwood lists a minimum wheel diameter of 17".
Which wheel bolt pattern does it use?
Wilwood lists 5 x 4.5" and 5 x 4.75" and 5 x 5".
What replacement pads does it take?
Pad type 10416. The kit is listed with BP-10 pads.
Are installation instructions available?
Yes. Wilwood's installation instructions are in the Documents section above.
Questions? Talk to a Racer
Not sure this is the right kit for your vehicle? Send us a message.
Always confirm your vehicle, spindles and wheel clearance before you order.
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.