Wilwood W4A RearTruck Kit14.25" 1999-UP GM 1500-SUV,1 Piston OE Caliper

AERO4 Big Brake Truck Rear Brake Kit

AERO4 Big Brake rear axle kits replace the factory disc brakes and use the OE parking brake assembly as a compliment to front big brake upgrades on late model trucks and SUVs. High capacity braking from the AERO4 calipers, BP-10 compound pads, and oversized rotors are matched to the OE master cylinder output, ABS function, and individual vehicle bias requirements. Enhanced brake performance, increased durability, and high-tech style compliment big wheel, tire, and suspension upgrades on customized vehicles, tow rigs, and all others with increased brake requirements from high GVW.

Specifications

Rear End Axle: OEM

Axle Offset: 0.00

Mount Type: Radial

Caliper Type: 4 - Black Powder Coat

Rotor Diameter: 14.25

Min Wheel Diameter Req'd*: 18

Calipers

Left Hand - Part No: 120-13282-BK

Right Hand - Part No: 120-13281-BK

Type: AERO4

Finish Color: Black Powder Coat

Piston Count: 4

Piston 1 Bore (in): 1.62

Piston 2 Bore (in): 1.38

Piston Area (In²): 3.56

Piston Type: Stainless

Mount Type: Radial

Brake Pad Plate: 6617

Brake Pad Area (In²): 11.1

Brake Pad Volume (In³): 5.2

Pad Compound: BP-20

Rotors

Left Hand - Part No: 160-9788-GTB

Right Hand - Part No: 160-9787-GTB

Type: GT 72 Curved Vane

Style: GT Slotted

Surface Finish: Black Electro Coat

Material: Spec-37 Iron

Outside Diameter (in): 14.25

Width (in): 1.25

Vane Count: 72 CV

Design Type: GT-BLK

Bedded: No

Dynamically Balanced: Yes

Rotor Hats

Hat - Part No: 170-15182

Type: Parking Brake Hat - Truck

Material: Iron

Finish Color: Black E-Coat

Hat Offset Dimension (in): 2.260

Bolt Circle 1: 6 x 5.50

Stud Diameter - BC 1: 0.630

Stud Diameter - BC 2: 0.000

Stud Diameter - BC 3: 0.000

Vehicle Fitments: