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Instruction Sheets for Part Number WIL-140-15348-DR
Wilwood Forged Narrow Superlite 4R-MC4 Big Brake Rear Parking Brake Kits for 1963-1979 CORVETTE - 140-15348-DR
Part Number: WIL-140-15348-DR
Wilwood Forged Narrow Superlite 4R-MC4 Big Brake Rear Parking Brake Kits
Disc Brake Kit, Forged Narrow Superlite 4R-MC4, Rear, Cross-drilled/Slotted Surface Rotors, Red Calipers, Fits Detroit Speed Corvette Rear End, Kit
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Estimated Ship Date: Oct 23, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
140-15348-DR
Part Type:
Product Line:
Summit Racing Part Number:
WIL-140-15348-DR
UPC:
889545086430
Position:
Rear
Front Rotor Included:
No
Brake Rotor Bolt Pattern (in.):
5 x 4.50 in.
Brake Rotor Bolt Pattern (mm):
5 x 114.30mm
Rear Rotor Included:
Yes
Rear Rotor Style:
Cross-drilled/Slotted surface
Rear Rotor Construction:
Vented
Rear Rotor Diameter:
14.00 in./355.60mm
Rear Rotor Thickness (in.):
0.81
Front Caliper Included:
No
Rear Caliper Included:
Yes
Rear Caliper Piston Quantity:
Four
Rear Caliper Material:
Forged billet aluminum
Rear Caliper Color:
Red
Brake Pads Included:
Yes
Friction Material Name:
BP-20
Parking Brake Provision:
Yes
Parking Brake Style:
Mechanical caliper
Minimum Recommended Wheel Diameter (in.):
18 in.
Offset (in.):
0.000 in.
Front Spindles Included:
No
Master Cylinder Included:
No
Brake Booster Included:
No
Remanufactured:
No
Brake Hoses Included:
No
Quantity:
Sold as a kit.
Notes:
Fits Detroit Speed corvette rear end.
Wilwood Forged Narrow Superlite 4R-MC4 Big Brake Rear Parking Brake Kits
Wilwood Forged Narrow Superlite 4R-MC4 Big Brake rear parking brake kits provide high-capacity braking, contemporary styling, and effective parking brake actuation. The original equipment single piston combination calipers are replaced with a high-efficiency, forged aluminum narrow Superlite four-piston calipers for normal braking, and auxiliary MC4 mechanical calipers for the parking brake. Rotor size is increased from 12.00 in. to 12.88 in., adding brake leverage and cooling capacity, while enriching the look inside your custom wheels and tires. These kits are available with slotted or drilled and slotted rotors with either black or red powdercoated calipers. When brake requirements increase, Wilwood offers their FNSL4R-MC4 rear kits for enhanced performance, increased durability, and high-tech style to complement front brake upgrades.
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