Wilwood 14-Inch GT Front Kit for ProSpindle, Black Superlite 6R Calipers, Aluminum Hats and 5 x 5 Wheel Hubs

A 14-inch rotor diameter distinguishes this black Superlite front package from smaller ProSpindle assemblies. The Spec-37 GT rings mount to aluminum hats and modified 5 x 5 wheel hubs, while BP-10 pads equip the six-piston calipers. The manufacturer, Wilwood Engineering, was founded by Bill Wood in 1977 and is based in Camarillo, California. It designs and manufactures disc systems and component parts across motorsport, street-performance and specialized applications, including calipers, brake rotors, master cylinders, valves, fittings and lines. Those individual parts must be selected in the context of the complete brake system.

Technical Details

• Manufacturer part number: 140-15156.
• Supplied pad compound: BP-10.
• Wheel bolt circle: 5 x 5 in; 5 x 127 mm.
• Wheel-stud thread: 1/2-20.
• Nominal minimum wheel diameter: 18 in; 457.2 mm; verify full spoke and barrel clearance using the kit drawing.
• Rotor mounting hat: aluminum; Black E-Coat; hat offset 1.880 in.
• Stated OE wheel-hub offset: +.68 in; verify the documented spindle and reference geometry.
• Mechanical package contents: separate hubs included; mounting hardware included: Yes; spindles included: No.
• Hydraulic package contents: brake lines included: No; master cylinder included: No; booster included: No.
• Current hub wheel interface: modified aluminum hub 270-10658 is specified for 5 x 5.00-inch wheels; hat mounting patterns are separate interfaces.
• Brake function and supply: Front Brake Kits - Street Performance; Disc braking; front axle; Sold as a kit.
• Rotor dimensions: outside diameter 14.00 in; 355.6 mm; thickness 1.10 in; 27.94 mm.
• Rotor construction and friction surface: Spec-37 Iron; Vented; GT Slotted; surface finish: Black Electro Coat.
• Service caliper assembly: Superlite 6R; 6 pistons in each caliper; Stainless pistons; Forged Aluminium body; Radial mounting.
• Caliper color, finish and hydraulic inlet: Black; Black Powder Coat; inlet 1/8-27 NPT.

Fitment & Compatibility

Follow DS1116 for the exact ProSpindle version; the spindles are separate components. Verify the current modified hub's 5 x 5-inch wheel interface, +0.68-inch hub offset and nominal 18-inch wheel requirement. This package does not supply flexlines.

For a fitment check, give PMB Performance the vehicle details and the actual brake and suspension hardware. Our team has over 20 years of experience working through parts compatibility.

Check the Installation instructions for the full assembly and wheel-clearance requirements.

Manufacturer Warning

Applicable to brake pads only. 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.