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Product details
This red AERO4 rear conversion is supplied with 14-inch drilled/slotted SRP rotors and BP-10 pads for compatible C1500 axles. Its electric parking-brake equipment includes the controller and harness needed to integrate the additional parking calipers. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are all part of Wilwood Engineering’s range of disc brake systems and components. The Camarillo, California company was founded in 1977 by Bill Wood and designs and manufactures these products for motorsport, street-performance and specialized applications. Compatibility with the complete brake system determines the appropriate component choice.
Technical Details
- Manufacturer part number: 140-18046-DR
- Service calipers: AERO4; 4 pistons; radial mount; Red Powder Coat
- Brake rotors: 14.00 x 1.10 inches; Spec-37 Iron; SRP Drilled & Slotted; vented construction
- Pads: BP-10; piston material: Stainless
- Caliper body material: Forged aluminum
- Hydraulic inlet: 1/8-27 NPT
- Rotor/hat wheel-stud clearance pattern(s): 5 x 5 in; 5 x 127 mm; match the installed hub/axle pattern
- Housing/flange application: 88-98 C1500
- Required axle offset: 3.25 in; 82.55 mm
- Parking equipment: separate electric calipers, controller and harness included
- Hydraulic brake hoses: not included; select the correct application-specific lines/fittings
- Wheel clearance: 18-inch wheels may fit; verify the manufacturer’s complete caliper/rotor template for the installed wheel
- Supplied as one kit with mounting hardware; spindles, hubs, master cylinder and booster are not included
Fitment & Compatibility
Use on the specified 1988–1998 Chevrolet/GMC C1500 rear axle configurations, following every brake-option and spindle qualification in the table. Required dimensions include a 3.25-inch axle offset, 5 x 5-inch lug pattern and 3.09-inch axle register.
The axle flange must not exceed 6.61 inches and needs the specified 0.050-inch x 45-degree chamfer. Confirm clearance around both the service and parking calipers using the manufacturer’s diagram before selecting wheels.
Confirm the applicable vehicle entry and all numbered notes in the fitment table below.
The electric parking brake is for stationary parking, not an emergency-stop brake. Applying it while the vehicle is moving can lock the rear wheels and cause a skid. Follow the wiring and holding-test procedures in the manufacturer’s instructions.
Manufacturer Resources
- Exact Wilwood kit specifications and wheel-clearance information
- Installation instructions and component list
- Axle-offset measurement worksheet
WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.
PMB Performance brings over 20 years of experience with brake components and fitment details. Send us your VIN together with the installed axle, spindle, brake and wheel specifications if you need help confirming this package.
Vehicle Applications
| Years | Make | Model | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|
| 1988-1991 | Chevrolet | C1500 Pickup | 4 x 2 w/ 1.00" Wide Front Rotor | Disc | Drum | Rear Kit | 1 |
| 1988-1991 | Chevrolet | C1500 Pickup | 5 Lug - 4 x 2, w/ 1.25" wide rotor, HD Chassis (F44) | Disc | Drum | Rear Kit | 1 |
| 1988-1998 | Chevrolet | C1500 Pickup | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Rear Kit | 1 |
| 1988-1991 | GMC | C1500 Pickup | 4 x 2 w/ 1.00" Wide Front Rotor | Disc | Drum | Rear Kit | 1 |
| 1988-1991 | GMC | C1500 Pickup | 5 Lug - 4 x 2, w/ 1.25" wide rotor, HD Chassis (F44) | Disc | Drum | Rear Kit | 1 |
| 1988-1998 | GMC | C1500 Pickup | Vehicles using Wilwood Iron ProSpindles | Drop | Drum | Rear Kit | 1 |
| 1992-1998 | Chevrolet | C1500 Pickup | 5 Lug - 4 x 2 | Disc | Drum | Rear Kit | 1 |
| 1992-1998 | GMC | C1500 Pickup | 5 Lug - 4 x 2 | Disc | Drum | Rear Kit | 1 |
Application Notes
- Line kit included (manufacturer): None
