Wilwood Front Black Caliper and GT Slotted Rotor Conversion for Chevrolet Tri-Five ProSpindle Cars (1955–1957), AERO6 / 14 Inch

AERO6 six-piston front calipers are paired with 14.00-inch rotor rings and replacement aluminum hubs for the Wilwood Tri-Five ProSpindle. Its thicker rotor specification and AERO pad format distinguish it from the Superlite packages. Black calipers and 14.00-inch GT slotted rotors are the selected configuration. Founded by Bill Wood in 1977 and based in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and components for motorsport, street-performance and specialized applications. Its range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines, chosen to match the complete system.

Technical Details

• Product identification: Wilwood 140-16910. Package quantity: one kit for the stated configuration.
• The brake package includes pads and required mounting hardware, excluding spindles, master cylinder and booster.
• Hydraulic line selection is a separate purchase. Check hose length, adapters and routing before assembly.
• Check the wheel-clearance diagram before purchase; the nominal minimum wheel diameter is 18 inches.
• Connect the hydraulic line through the 1/8-27 NPT caliper inlet.
• The kit includes new aluminum hubs and their bearing hardware. Select the 5 x 4.50, 5 x 4.75-inch wheel pattern and 1/2-20 studs.
• Rotor mounting is through separate aluminum hats, offset 1.000 inch and finished in black e-coat.
• Piston sizing follows the published 1.62, 1.12, 1.12-inch specification. The included brake-pad compound is BP-20.
• Caliper selection is 6-piston AERO6. Body finish: black powder coat; attachment: radial; piston material: stainless.
• Rotor package uses GT 72 Curved Vane components. Each is 1.25 inch thick with 14.00-inch diameter and GT slotted faces. Published material: Spec-37 Iron.

Fitment & Compatibility

Install around Wilwood's 2.00-inch-drop ProSpindles, ordered separately as 831-16660, with customer-supplied original steering arms. The AERO6 conversion has a 0.34-inch per-side outward track change and needs the 18-inch wheel envelope checked against the drawing. Its Chevrolet entries distinguish Bel Air, Nomad, One-Fifty Series, Sedan Delivery and Two-Ten Series 1955–1957 from Del Ray 1957. Compare the replacement hub pattern and select the flexible brake hoses before assembly. Use the complete application table below to check the individual year, model, submodel, original brake configuration and attached notes.

PMB Performance brings 20+ years of parts and fitment experience to brake selection. Send the actual hub or spindle details, existing brake configuration and wheel measurements for help checking this combination.

Manufacturer documentation: Installation instructions.

Manufacturer Warning

Applicable to brake pads only: Wilwood warns of exposure to arsenic, cadmium, hexavalent chromium compounds, lead, nickel, cobalt and antimony trioxide, chemicals known to California to cause cancer or reproductive harm. More information:

P65Warnings.ca.gov.