{"product_id":"wilwood-140-17142-r","title":"Wilwood Rear GT Rotor Brake Package, Red AERO4\/MC4 Calipers, C7 Front Uprights Used on Rear Chassis","description":"\u003cp\u003eThis Wilwood AERO4\/MC4 rear brake kit pairs red 4-piston calipers with 14.00-inch gt slotted brake rotors for C7 Front Uprights on Custom Rear Chassis. The package must match the documented mounting arrangement and wheel clearance before the original brakes are removed. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. Its disc-brake systems and components serve motorsport, street-performance and specialized applications. The range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected to suit the requirements of the complete system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 140-17142-R; supplied as an axle kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor hats:\u003c\/strong\u003e Aluminum big brake hat - flared bell; Black E-Coat; hat offset 0.540 inches. Hat offset is distinct from axle offset.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic sizing:\u003c\/strong\u003e cataloged bore sizes 1.12, 1.12 inches; piston area 1.98 square inches; inlet 1\/8-27 NPT.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService calipers:\u003c\/strong\u003e AERO4; 4 pistons per caliper; Red Powder Coat; radial mounting; stainless pistons.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplied friction pads:\u003c\/strong\u003e BP-10 compound; match operating conditions to the intended use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake rotor size:\u003c\/strong\u003e 14.00-inch outside diameter × 1.10-inch thickness; vented friction section.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor\/hat mounting-hole pattern:\u003c\/strong\u003e 5 X 4.5 in; 5 X 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm; cataloged hole clearances 0.580 in; 14.73 mm; 0.520 in; 13.21 mm. These are rotor or hat drillings, not replacement wheel studs. The retained hub or axle determines the vehicle wheel pattern.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParking brake:\u003c\/strong\u003e Separate MC4 mechanical parking calipers supplied; arrange suitable cable operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor specification:\u003c\/strong\u003e Material: Spec-37 Iron; Type: GT 72 Curved Vane; Style: GT Slotted; Surface Finish: Black Electro Coat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel envelope:\u003c\/strong\u003e 18-inch minimum nominal wheel diameter; verify the entire wheel-clearance drawing, including spoke and barrel shape.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware and retained components:\u003c\/strong\u003e Mounting hardware supplied; existing wheel hubs retained; spindles, master cylinder and brake booster are not included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic lines:\u003c\/strong\u003e Hydraulic flexlines and fittings are not included; select compatible lines for the complete installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eDS1528 documents a C7 Corvette front upright used at the rear of a custom chassis. Verify the Roadster Shop Fast Track IRS arrangement and exact upright, hub register, stud pattern and 18-inch wheel clearance; this is not a stock C7 rear-brake replacement. The MC4 is a separate mechanically actuated parking caliper. Plan compatible cable actuation and separate hydraulic hoses.\u003c\/p\u003e\u003cp\u003eA VIN helps identify the original specification; measured hardware matters after a conversion. PMB Performance draws on more than 20 years of experience when reviewing those details.\u003c\/p\u003e\u003cp\u003eReview \u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds1528.pdf\"\u003eInstallation instructions\u003c\/a\u003e for the complete installation and clearance requirements.\u003c\/p\u003e\u003ch3\u003eManufacturer Warning\u003c\/h3\u003e\u003cp\u003eApplicable 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.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67757527892146,"sku":"140-17142-R","price":2679.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/140-17142-R_kit-xl.jpg?v=1792450412","url":"https:\/\/pmbperformance.com\/products\/wilwood-140-17142-r","provider":"PMB Performance","version":"1.0","type":"link"}