Rear Brake Kit – Part No: 140-13879-R
Call (805) 388-1188
TX6R Big Brake Truck Rear Brake Kit
Prod #: 140-13879-R
Price: $3,148.54
Rear Brake Kit - Rear Kit


Kit Contents
Wilwood TX6R Big Brake Truck Rear Brake Kit Parts Laid Out - Red Powder Coat Caliper - GT Slotted Rotor Wilwood TX6R Big Brake Truck Rear Brake Kit Parts Laid Out - Red Powder Coat Caliper - GT Slotted Rotor Zoom Image


View Custom Caliper Colors

Kit Summary
Rear End Axle: OEM
Axle Offset: 0.00
Mount Type: Radial
Caliper Type: 6 - Red Powder Coat
Rotor Diameter: 16.00
Min Wheel Diameter Req'd*: 20
*This Brake Kit may fit 20-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 889545071580

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


TX6R Big Brake Truck Rear Brake Kit

Wilwood’s Tactical Extreme TX6R Big Brake rear kits are ultimate in braking performance for Truck, SUV and Armored Vehicles. Using TX6R radial mount six-piston calipers and massive 15.00” to 16.00” GT-60 directional vane Spec-37 alloy rotors, these kits deliver consistent stopping power and extreme duty durability under sustained high heat with this ready to bolt-on kit. The calipers are volume matched for compatibility with original equipment power brake system output. TX6R rear kits replace the factory disc brakes and use the OE parking brake assembly as a compliment to front big brake upgrades. Kits include radial mount caliper brackets, and all the necessary hardware to complete the installation. Braided stainless steel flex lines will need to be purchased for some applications.


Fitment & Installation Details

TX6R Big Brake Truck Rear Brake Kit Assembly Schematic

TX6R Big Brake Truck Rear Brake Kit Assembly Schematic TX6R Big Brake Truck Rear Brake Kit Assembly Schematic Zoom Image

Rear End / Axle Housing Flange
Confirm The Configuration!

OEM Flange 		Confirm Offset Measurement!

Axle Flange Cross-Section
Search Rear Kits By Rear End/Axle Offset
caution AXLE OFFSET: 0.00
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

Wheel Clearance Diagram Wheel Clearance Diagram Zoom Image
Part 1
Notes
1. Fits axle with 4.84 center register only.

Compatible Vehicles for this Brake Kit

BRAKE KIT:   TX6R Big Brake Truck Rear Brake Kit

This Brake Kit is Compatible with the Following Vehicle Makes:   Chevrolet GMC

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

REAR END:   OEM - Rear Kit

AXLE OFFSET:   0.00

For a Complete Listing including ALL Makes, Models and Years, Please click on the Axle Offset.
fitment 1
Offset: 0.00


Kit Components & Specifications
Calipers
Left Hand - Part No: 120-13818-RD
Right Hand - Part No: 120-13817-RD
Type: TX6R
Finish Color: Red Powder Coat
Piston Count: 6
Piston 1 Bore (in): 1.75
Piston 2 Bore (in): 1.62
Piston 3 Bore (in): 1.62
Piston Area (In²): 6.52
Piston Type: Stainless
Mount Type: Radial
Brake Pad Plate: 10120
Brake Pad Area (In²): 12.69
Brake Pad Volume (In³): 6.81
Pad Compound: BP-Q
TX6R Caliper - Red Powder Coat TX6R Caliper - Red Powder Coat Zoom Image
Rotors
Left Hand - Part No: 160-16994-GTB
Right Hand - Part No: 160-16994-GTB
Type: GT 72 Staggered Vane
Style: GT Slotted
Surface Finish: Black Electro Coat
Material: Iron
Outside Diameter (in): 16.00
Width (in): 1.38
Vane Count: 72 SV
Design Type: GT-BLK
Bedded: No
Dynamically Balanced: Yes
GT 72 Staggered Vane - Iron - Black Electro Coat GT 72 Staggered Vane - Iron - Black Electro Coat Zoom Image
Rotor Hats
Hat - Part No: 170-14029
Type: Parking Brake Hat - Truck
Material: Iron
Finish Color: Black E-Coat
Hat Offset Dimension (in): 1.910
Bolt Circle 1: 8 x 6.50
Bolt Circle 2:
Bolt Circle 3:
Stud Diameter - BC 1: 0.640
Stud Diameter - BC 2: 0.000
Stud Diameter - BC 3: 0.000
Parking Brake Hat - Truck - Iron - Black E-Coat Parking Brake Hat - Truck - Iron - 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: 130-14278
Replacement Dustboot: N-A
Replacement Piston 1: 200-7531
Replacement Piston 2: 200-7519
Replacement Piston 3: 200-7519
Replacement Piston 4: N-A
CrossOver O-Ring Kit: 130-10540
Crossover Tube: N-A
Self-Bleeder Tube: N-A
Bridge Bolt Kit: N-A
Wear Plate - Left Hand: 300-5922
Wear Plate - Right Hand: 300-5923
Pad Retainer: 180-9874
Bleed Screw Kit: 220-0627
Brake Lines
Front Line Kit:
 Front Line Kit:
 		220-9811
 220-11196
Hat
Bolt Kit:
Hub
Bolt Kit:
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Version: 3.05 June 23, 2023