1971 Oldsmobile Cutlass Supreme w/ O.A.I. Drum Brake Spindles - Front Brake Kit Part No.: 140-9803-R
Call (805) 388-1188
Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub)
Prod #: 140-9803-R
Price: $2,316.14
Front Brake Kit — 140-9803-R


Kit Contents
Wilwood Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub) Parts Laid Out - Red Powder Coat Caliper - GT Slotted Rotor Wilwood Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub) Parts Laid Out - Red Powder Coat Caliper - GT Slotted Rotor Zoom Image


View Custom Caliper Colors

Kit Summary
OE Hub Offset: +.38
(Increase / Decrease Track Width)
Spindle Type: Drop Spindle Factory Disc Spindle Factory Drum Spindle
Mount Type: Radial
Caliper Type: 6 - Red 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 889545032222

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


Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub)

FNSL6R billet Forged six-piston calipers with 13”-14” rotors deliver the ultimate combination for braking power and style in this group of kits engineered for traditional non-ABS spindles on American muscle cars and vintage rods. Built exclusively for 17” and larger wheels, SL6 kits enhance tire and suspension upgrades on all types of custom show and high performance dual-purpose street and track machines. A full range of options for caliper finishes and rotor designs are guaranteed to catch the eye of the most discriminating enthusiast while providing optimized brake performance for every individual application.


Fitment & Installation Details


Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub) Assembly Schematic

Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub) Assembly Schematic Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub) Assembly Schematic Zoom Image

*NOTE: Some applications for this kit have the steering arm to the rear of the spindle and others to the front. Also, some applications have room to mount the bracket and caliper on the steering arm side of the spindle while the steering arm may interfere in other applications. The brackets in this kit may be mounted on either the front or rear side of the spindle. If mounting to the front of the spindle, the right hand bracket will be used on the left hand side of the vehicle and vice versa. This drawing shows a typical 1967-1969 Camaro left side application where the steering arm is to the rear and there is room to mount the caliper on the steering arm side as shown. Determine which way the bracket and caliper will fit best on your application.

Compatible Vehicles for this Brake Kit
BRAKE KIT:   Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub)
SPINDLE TYPE:  
Drop Spindle; Factory Disc Spindle; Factory Drum Spindle ;
This Brake Kit is Compatible with the Following Vehicle Makes: Buick Chevrolet Ford GMC Heidts Mercury Oldsmobile Pontiac Ridetech

Note: Kit may fit other vehicles, call Wilwood Sales⁄Tech Support at (805) 388-1188 for more information.
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Caution
Caution THIS BRAKE KIT HAS A HUB OFFSET OF: +.38
This Hub Offset will move the wheels inward or outward from the fender by this amount on each side of the vehicle
NOTE: Check "Figure 2. Wheel Clearance Diagram" in the installation Instructions below to verify you have adequate wheel clearance for this kit.

Wheel Clearance Assembly Instructions

Wheel Clearance Diagram Wheel Clearance Diagram Zoom Image



Assembly Instructions
Notes





Kit Components & Specifications
Calipers
Left Hand - Part No: 120-11781-RD
Right Hand - Part No: 120-11780-RD
Type: Forged Narrow Superlite 6R
Finish Color: Red Powder Coat
Piston Count: 6
Piston 1 Bore (in): 1.62
Piston 2 Bore (in): 1.12
Piston 3 Bore (in): 1.12
Piston Area (In²): 4.04
Piston Type: Stainless
Mount Type: Radial
Brake Pad Plate: 7416
Brake Pad Area (In²): 8.2
Brake Pad Volume (In³): 3.8
Pad Compound: BP-10
Forged Narrow Superlite 6R Caliper - Red Powder Coat Forged Narrow Superlite 6R Caliper - Red 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
Bedded: 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: 170-7467
Type: Big Brake Hat - Flared Bell
Material: Aluminum
Finish Color: Black E-Coat
Hat Offset Dimension (in): 1.750
Bolt Circle 1: 5 x 4.50
Bolt Circle 2: 5 x 4.75
Bolt Circle 3:
Stud Diameter - BC 1: 0.520
Stud Diameter - BC 2: 0.520
Stud Diameter - BC 3: 0.000
Big Brake Hat - Flared Bell - Aluminum - Black E-Coat Big Brake Hat - Flared Bell - Aluminum - Black E-Coat Zoom Image
Hubs
Hub - Part No: 270-7037
Type: Hub - Hat Mount
Material: Aluminum
Finish Color: Bare
Mount Style: Hat
Bolt Circle 1: 5 x 4.50
Bolt Circle 2: 5 x 4.75
Bolt Circle 3:
Stud Diameter - BC 1: 1/2-20
Stud Diameter - BC 2: 1/2-20
Stud Diameter - BC 3:
Hub - Hat Mount - Aluminum - Bare Hub - Hat Mount - Aluminum - Bare Zoom Image

Parts & Accessories
Caliper Parts
O-ring Kit: 130-5972
Replacement Dustboot: N-A
Replacement Piston 1: 200-7520
Replacement Piston 2: 200-8439
Replacement Piston 3: 200-8439
Replacement Piston 4: N-A
CrossOver O-Ring Kit: 130-10540
Crossover Tube: N-A
Self-Bleeder Tube: N-A
Bridge Bolt Kit: 230-17553
Wear Plate - Left Hand: 300-6596
Wear Plate - Right Hand: 300-6595
Pad Retainer: N-A
Bleed Screw Kit: 220-0627
*Brake Lines Needed
1971 Oldsmobile Cutlass Supreme
 		220-7056
Hat
Bolt Kit: 230-8008
Hub
Bolt Kit: 230-7032
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Version: 3.05 June 23, 2023