Rear Brake Kit – Part No: 140-18297
Call (805) 388-1188
Forged XRS4R Big Brake Rear Parking Brake Kit
Prod #: 140-18297
Price: $2,808.99
Rear Brake Kit - Rear Kit


Kit Contents
Wilwood Forged XRS4R Big Brake Rear Parking Brake Kit Parts Laid Out - Black Powder Coat Caliper - GT Slotted Rotor Wilwood Forged XRS4R Big Brake Rear Parking Brake Kit Parts Laid Out - Black Powder Coat Caliper - GT Slotted Rotor Zoom Image


View Custom Caliper Colors

Kit Summary
Rear End Axle: Large Chevy C10
Axle Offset: 2.42
Mount Type: Radial
Caliper Type: 4 - Black Powder Coat
Rotor Diameter: 12.88
Min Wheel Diameter Req'd*: 17
*This Brake Kit may fit 17-inch wheels. Please refer to the wheel clearance diagram to check to see if it will fit your specific wheel. Wheel Clearance Diagram
UPC Number
UPC 889545127256

WARNING: Cancer and Reproductive Harm
www.P65Warnings.ca.gov
Applicable to Brake Pads Only


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 complement 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.


Fitment & Installation Details

Forged XRS4R Big Brake Rear Parking Brake Kit Assembly Schematic

Forged XRS4R Big Brake Rear Parking Brake Kit Assembly Schematic Forged XRS4R Big Brake Rear Parking Brake Kit Assembly Schematic Zoom Image

Rear End / Axle Housing Flange
Confirm The Configuration!

Large Chevy C10 Flange 		Confirm Offset Measurement!

Axle Flange Cross-Section
Search Rear Kits By Rear End/Axle Offset
caution AXLE OFFSET: 2.42
Check the diagram above and verify this measurement. This kit may be available in several different offsets.
Please call Wilwood with any questions: (805) 388-1188

Wheel Clearance Assembly Instructions

Part 1
Notes
1. C-10 / C-15 Truck - 5 lug only.

Compatible Vehicles for this Brake Kit

BRAKE KIT:   Forged XRS4R Big Brake Rear Parking Brake Kit

This Brake Kit is Compatible with the Following Vehicle Makes:   Chevrolet CPP (Classic Performance Prod) GMC Ridetech

Note: Kit may fit other vehicles, call Wilwood Sales⁄Tech Support at (805) 388-1188 for more information.

REAR END:   Large Chevy C10 - Rear Kit

AXLE OFFSET:   2.42

For a Complete Listing including ALL Makes, Models and Years, Please click on the Axle Offset.
fitment 1
Offset: 2.42


Kit Components & Specifications
Calipers
Left Hand - Part No: 120-17201-BK
Right Hand - Part No: 120-17201-BK
Type: Forged XRS4R
Finish Color: Black Powder Coat
Piston Count: 4
Piston 1 Bore (in): 1.12
Piston 2 Bore (in): 1.12
Piston Area (In²): 1.98
Piston Type: Stainless
Mount Type: Radial
Brake Pad Plate: 10416
Brake Pad Area (In²): 8.2
Brake Pad Volume (In³): 3.8
Pad Compound: BP-10
Forged XRS4R Caliper - Black Powder Coat Forged XRS4R Caliper - Black Powder Coat Zoom Image
Rotors
Left Hand - Part No: 160-12962-GTB
Right Hand - Part No: 160-12961-GTB
Type: GT 48 Curved Vane
Style: GT Slotted
Surface Finish: Black Electro Coat
Material: Spec-37 Iron
Outside Diameter (in): 12.88
Width (in): 1.10
Vane Count: 48 CV
Design Type: GT-BLK
Burnished: No
Dynamically Balanced: Yes
GT 48 Curved Vane - Spec-37 Iron - Black Electro Coat GT 48 Curved Vane - Spec-37 Iron - Black Electro Coat Zoom Image
Rotor Hats
Hat - Part No: 170-13909
Type: Parking Brake Hat - Standard
Material: Aluminum
Finish Color: Black E-Coat
Hat Offset Dimension (in): 1.540
Bolt Circle 1: 5 x 4.50
Bolt Circle 2: 5 x 4.75
Bolt Circle 3: 5 x 5.00
Stud Diameter - BC 1: 0.520
Stud Diameter - BC 2: 0.520
Stud Diameter - BC 3: 0.520
Parking Brake Hat - Standard - Aluminum - Black E-Coat Parking Brake Hat - Standard - Aluminum - Black E-Coat Zoom Image
Hubs
Hub - Part No:
Type:
Material:
Finish Color:
Mount Style:
Bolt Circle 1:
Bolt Circle 2:
Bolt Circle 3:
Stud Diameter - BC 1:
Stud Diameter - BC 2:
Stud Diameter - BC 3:

Parts & Accessories
Caliper Parts
O-ring Kit: 130-2579
Replacement Dustboot: N-A
Replacement Piston 1: 200-8439
Replacement Piston 2: 200-8439
Replacement Piston 3: N-A
Replacement Piston 4: N-A
CrossOver O-Ring Kit: 130-10540
Crossover Tube: N-A
Self-Bleeder Tube: N-A
Bridge Bolt Kit:
Wear Plate - Left Hand: 300-17190
Wear Plate - Right Hand: 300-17189
Pad Retainer: 180-14649
Bleed Screw Kit: 220-0627
*Brake Lines Needed
Parking Brake Cable: 330-9371
Hat
Bolt Kit: 230-8008
Hub
Bolt Kit:

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Version: 3.05 June 23, 2023