Wilwood Red Six-Piston C10 Front Package, Drilled 13.06 x 1.25-Inch Rotors and Hats for Specified Wilwood Modular Drop Spindles

Red Superlite 6R calipers clamp 13.06-inch SRP rotor rings mounted to aluminum hats. BP-10 pads and mounting hardware complete the brake kit; hubs and spindles remain part of the separate Wilwood ProSpindle assembly, and hoses are also separate. Founded by Bill Wood in 1977, Camarillo, California-based Wilwood Engineering designs and manufactures disc brake systems plus their individual components. Its work serves specialized applications, motorsport and street-performance vehicles, with a range of calipers, brake rotors, master cylinders, valves, fittings and brake lines. A compatible complete system governs the selection of each part.

Technical Details

• Manufacturer part number — 140-15303-DR.
• Brake function and supply — Front Brake Kits - Street Performance; Disc braking; front axle; Sold as a kit.
• Rotor construction and friction surface — Spec-37 Iron; Vented; SRP Drilled & Slotted; surface finish: Black Electro Coat.
• Caliper color, finish and hydraulic inlet — Red; Red Powder Coat; inlet 1/8-27 NPT.
• Wheel bolt circle — 5 x 4.75 in; 5 x 120.65 mm; 5 x 5 in; 5 x 127 mm.
• Nominal minimum wheel diameter — 17 in; 431.8 mm; verify full spoke and barrel clearance using the kit drawing.
• Mechanical package contents — no separate hubs included; mounting hardware included: Yes; spindles included: No.
• Flexline specification — Line kit included (manufacturer): None; Front line-kit reference: 220-7056, 220-11237, 220-12168.
• Rotor dimensions — outside diameter 13.06 in; 331.72 mm; thickness 1.25 in; 31.75 mm.
• Service caliper assembly — Superlite 6R; 6 pistons in each caliper; Stainless pistons; Forged Aluminium body; Radial mounting.
• Supplied pad compound — BP-10.
• Hat wheel-stud clearance diameter — 0.520 in; 13.21 mm.
• Rotor mounting hat — aluminum; Black E-Coat; hat offset 1.380 in.
• Hydraulic package contents — brake lines included: No; master cylinder included: No; booster included: No.

Fitment & Compatibility

Match the exact five-lug truck application with the Wilwood Aluminum Modular Pro Drop Spindles required by DS1159. OE spindles are excluded. Check whether the model year uses +0.41-inch outward or -0.06-inch inward wheel position, then confirm full nominal 17-inch clearance and line routing.

Listed model families are C10 Panel, C10 Pickup, Suburban, 1000 Series, 1000, C10 Suburban, C15/C1500 Suburban, C1500 Pickup, Blazer, Jimmy, C10, K5 Blazer, C15 Suburban, C1500 Suburban, R10 Pickup, R10 Suburban, R1500 Pickup, R1500 Suburban; the individual year and brake/spindle conditions remain decisive. Use the fitment table below to confirm year, model, trim and brake or suspension options.

Select a suitable front hose kit from the listed alternatives after checking the actual chassis fittings, route and full suspension/steering travel.

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.