{"product_id":"wilwood-140-18302","title":"Black XRS6R Calipers and 14.00-inch GT Slotted Rotors — Wilwood Front Kit for 1963–1987 Chevrolet \/ GMC Trucks with Aluminum ProSpindles","description":"\u003cp\u003eBlack XRS6R calipers and 14-inch GT slotted rotors form the larger front package for Wilwood C10 aluminum modular ProSpindles. Each 1.25-inch-thick Spec-37 disc contains 72 curved vanes, with BP-10 pads and flared aluminum hats supplied. Bill Wood established Wilwood Engineering in 1977. From Camarillo, California, the company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized applications.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003ch3\u003eKit contents and separate parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 140-18302\u003c\/li\u003e\n\u003cli\u003eSupply: one brake kit; components for both sides of the axle\u003c\/li\u003e\n\u003cli\u003eMounting hardware: included\u003c\/li\u003e\n\u003cli\u003eHubs: not included\u003c\/li\u003e\n\u003cli\u003eSpindles, master cylinder and brake booster: not included\u003c\/li\u003e\n\u003cli\u003eBrake flexlines: not included\u003c\/li\u003e\n\u003cli\u003eRelated installation parts to select for the application: 220-7056; 220-11237; 220-12168\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eA 14-inch front brake envelope and the Wilwood C10 aluminum modular Pro Drop Spindle define this installation. Match the five-lug hub hardware and the individual Chevrolet\/GMC truck application in the table; stock spindles will not accept the kit. Wheel-mounting position changes relative to the factory brakes and spindle: outward by 0.41 inch per side for 1963–1970, inward by 0.06 inch for 1971–1987. Allow for those changes when checking wheel and body clearance. Hubs and spindles are not supplied, nor are flexlines. Select the applicable 220-7056, 220-11237 or 220-12168 hose kit. Nominal minimum wheel diameter: 18 in; 457.2 mm. The linked wheel-clearance diagram must confirm barrel and spoke clearance; wheel diameter alone does not guarantee fit.\u003c\/p\u003e\u003ch3\u003eRotors and mounting dimensions\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRotors: 14.00 in; 355.6 mm diameter x 1.25 in; 31.75 mm thick; vented Spec-37 Iron\u003c\/li\u003e\n\u003cli\u003eFriction faces: GT Slotted\u003c\/li\u003e\n\u003cli\u003eRotor coating\/finish: Black Electro Coat\u003c\/li\u003e\n\u003cli\u003eInternal vanes: 72 curved\u003c\/li\u003e\n\u003cli\u003eHats: Aluminum; Black E-Coat; 1.380-inch hat offset\u003c\/li\u003e\n\u003cli\u003eRotor\/hat wheel-stud clearance patterns: 5 x 4.75 in; 5 x 120.65 mm; 5 x 5 in; 5 x 127 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCalipers and pads\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCalipers: XRS6R; 6 pistons\u003c\/li\u003e\n\u003cli\u003eCaliper finish: Black Powder Coat\u003c\/li\u003e\n\u003cli\u003eBody construction: Forged aluminum\u003c\/li\u003e\n\u003cli\u003ePistons: stainless\u003c\/li\u003e\n\u003cli\u003eMounting: radial\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet: 1\/8-27 NPT\u003c\/li\u003e\n\u003cli\u003eIncluded pad compound: BP-10\u003c\/li\u003e\n\u003cli\u003eListed piston bore sizes: 1.75 \/ 1.25 \/ 1.25 in\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation documents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds1685.pdf\"\u003eInstallation instructions\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eWARNING: 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\u003cp\u003ePMB Performance has supported brake and restoration projects for more than 20 years. Share your vehicle and installed chassis hardware with us for help selecting the correct brake package.\u003c\/p\u003e\u003ch3\u003eVehicle Applications\u003c\/h3\u003e\u003cdiv class=\"fitment-table-wrap\" style=\"overflow-x:auto\"\u003e\u003ctable class=\"specs\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eModel option\u003c\/th\u003e\n\u003cth\u003eFront brakes\u003c\/th\u003e\n\u003cth\u003eRear brakes\u003c\/th\u003e\n\u003cth\u003eKit application\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1963-1967\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eC10 Panel\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1963-1974\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eC10 Pickup\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1963-1966\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSuburban\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1963-1965\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003e1000 Series\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1963-1966\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSuburban\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1967-1986\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eC10 Suburban\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1967-1974\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eC15\/C1500 Suburban\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1967-1974, 1979-1986\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eC1500 Pickup\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1970-1974\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eBlazer\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1970-1982\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eJimmy\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1975-1986\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eC10\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1975-1982\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eK5 Blazer\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1975-1978\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eC15 Suburban\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1979-1986\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eC1500 Suburban\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1987\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eR10 Pickup\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1987\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eR10 Suburban\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1987\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eR1500 Pickup\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1987\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eR1500 Suburban\u003c\/td\u003e\n\u003ctd\u003eVehicles using Wilwood Aluminum Modular ProSpindles, 5 Lug only\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4, 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eApplication Notes\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eBrake kits require Wilwood C10 Aluminum Modular Pro Drop Spindles to fit. Will not fit original equipment spindles.\u003c\/li\u003e\n\u003cli\u003eBrake kit wheel offset is +0.41 outboard from stock OE brakes and spindle for years 1963 – 1970. Wheel offset is -0.06 inboard from stock OE brakes and spindle for years 1971 – 1987.\u003c\/li\u003e\n\u003cli\u003eThis is a front service-brake kit. Any rear parking-brake cable is selected separately for the vehicle's rear brake system.\u003c\/li\u003e\n\u003cli\u003eLine kit included (manufacturer): None\u003c\/li\u003e\n\u003cli\u003eFront line-kit reference: 220-7056, 220-11237, 220-12168\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67724373819570,"sku":"140-18302","price":2741.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/140-18302_kit-xl.jpg?v=1792086524","url":"https:\/\/pmbperformance.com\/products\/wilwood-140-18302","provider":"PMB Performance","version":"1.0","type":"link"}