Wilwood front AERO6 kit components for GM K-Series/Blazer/Jimmy 6-Lug 4x4, red calipers and 14-inch srp drilled and slotted rotors
Wilwood front AERO6 assembly for GM K-Series/Blazer/Jimmy 6-Lug 4x4, red caliper and 14-inch srp drilled and slotted rotor
Wilwood front AERO6 kit components for GM K-Series/Blazer/Jimmy 6-Lug 4x4, red calipers and 14-inch srp drilled and slotted rotors
Wilwood front AERO6 assembly for GM K-Series/Blazer/Jimmy 6-Lug 4x4, red caliper and 14-inch srp drilled and slotted rotor

Wilwood Front GM Six-Lug 4x4 Conversion (1971–1991), Red AERO6 with 14-Inch Drilled/Slotted Rotors

SKU: 140-18156-DR

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Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.

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Product details

Red AERO6 calipers clamp 14 x 1.25-inch SRP rotors in this GM 4x4 front brake kit. The package includes BP-10 pads and mounting hardware, with hydraulic hoses and system-pressure compatibility addressed separately. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems for motorsport, street-performance and specialized applications. Founded by Bill Wood in 1977, the company also produces the individual calipers, brake rotors, master cylinders, valves, fittings and brake lines used in these installations. Selection should account for how each component works within the complete brake system.

Technical Details

  • Manufacturer part number: 140-18156-DR
  • Service calipers: AERO6; 6 pistons; radial mount; Red Powder Coat
  • Brake rotors: 14.00 x 1.25 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): 6 x 5.5 in; 6 x 139.7 mm; match the installed hub/axle pattern
  • 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

This 14-inch AERO6 front installation requires the specified GM six-lug 4x4 hub arrangement. Check the individual 1971–1991 Chevrolet/GMC K-series, Blazer/K5 Blazer, Jimmy and related Suburban rows; only the years shown for the particular model apply. Verify the full brake envelope within the wheel, even when its nominal diameter is 18 inches.

The manual calls for modification of the hub’s wheel-stud holes before brake assembly. A 15/16-inch master-cylinder bore is recommended with the original pedal and vacuum booster; avoid the OE 1.12-inch bore because Wilwood warns of very high effort. Retaining rear drums also calls for the recommended rear-circuit 10-pound residual and proportioning valves. Choose the required hydraulic hose set for the vehicle.

Confirm the applicable vehicle entry and all numbered notes in the fitment table below.

Manufacturer Resources

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.

For fitment help, contact PMB Performance with your VIN and details of any axle, spindle or brake changes. Our team has over 20 years of experience checking parts and fitment, including the dimensions that a model-year search cannot establish.

Vehicle Applications

Years Make Model Model option Front brakes Rear brakes Kit application Notes
1971-1974, 1987-1991 Chevrolet Blazer 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1971-1991 GMC Jimmy 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1971-1974 GMC K15/K1500 Pickup 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1971-1974 GMC K15/K1500 Suburban 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1975-1986 Chevrolet K10 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1975-1986 Chevrolet K10 Suburban 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1975-1986 Chevrolet K5 Blazer 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1975-1978 GMC K15 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1975-1978 GMC K15 Suburban 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1979-1986 GMC K1500 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1979 GMC K1500 Suburban 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1980-1986 GMC K1500 Suburban 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5

Application Notes

  1. Caution: A 15/16” bore master cylinder is recommended for proper brake function when installing this brake kit with the factory brake pedal and vacuum booster.
  2. Wilwood offers a 15/16” bore tandem master cylinder suitable for this application, p/n 260-18184
  3. Using the OE 1.12” bore master cylinder is not recommended and will require very high pedal effort to stop the vehicle.
  4. Line kit included (manufacturer): None
  5. Front line-kit reference: 220-18356