{"product_id":"wilwood-140-18301-dr","title":"1963–1987 Chevrolet \/ GMC Trucks with Aluminum ProSpindles — Front Drilled\/Slotted Brake Conversion with Red Wilwood XRS6R, 13.06-inch","description":"\u003cp\u003eRed XRS6R calipers surround 13.06 x 1.25-inch SRP discs in this aluminum ProSpindle front package. The nominal 17-inch minimum wheel size is only a starting point: hat position and caliper projection must both clear the actual wheel and suspension. Wilwood Engineering, based in Camarillo, California, has designed and manufactured disc brake systems since its founding by Bill Wood in 1977. The range spans 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\u003eCalipers and pads\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCalipers: XRS6R; 6 pistons\u003c\/li\u003e\n\u003cli\u003eCaliper finish: Red 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\u003eKit contents and separate parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 140-18301-DR\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\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\u003ch3\u003eRotors and mounting dimensions\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRotors: 13.06 in; 331.72 mm diameter x 1.25 in; 31.75 mm thick; vented Spec-37 Iron\u003c\/li\u003e\n\u003cli\u003eFriction faces: SRP Drilled \u0026amp; Slotted\u003c\/li\u003e\n\u003cli\u003eRotor coating\/finish: Black Electro Coat\u003c\/li\u003e\n\u003cli\u003eInternal vanes: 48 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\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eThe 13.06-inch rotor package is specific to Wilwood C10 aluminum modular Pro Drop Spindles, retaining the matching five-lug hub arrangement. Original truck spindles are not compatible. Check the table for the Chevrolet\/GMC model and year, then allow for the change in wheel position: 0.41 inch outward per side on 1963–1970 applications, or 0.06 inch inward on 1971–1987 applications, measured against the original brake\/spindle combination. Purchase hubs, spindles and hoses separately. The listed flexline choices are 220-7056, 220-11237 and 220-12168; verify the correct vehicle connection and length. Nominal minimum wheel diameter: 17 in; 431.8 mm. The linked wheel-clearance diagram must confirm barrel and spoke clearance; wheel diameter alone does not guarantee fit.\u003c\/p\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\u003eOur team at PMB Performance draws on 20+ years of brake and restoration work. We can help you review the application requirements before you assemble the system.\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":67724373754034,"sku":"140-18301-DR","price":2561.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/140-18301-DR_kit-xl.jpg?v=1792086520","url":"https:\/\/pmbperformance.com\/products\/wilwood-140-18301-dr","provider":"PMB Performance","version":"1.0","type":"link"}