{"product_id":"wilwood-narrow-superlite-6r-front-hat-kit-12-19in-63-87-c10-black","title":"Wilwood Narrow Superlite 6R Front Brake Kit 12.19in 63-87 C10 Pro Spindle","description":"\u003ch4\u003eSix-Piston Braking for C10 and C15 Pro Spindles\u003c\/h4\u003e\u003cp\u003eWilwood 140-15940-D is a front big brake kit for 1963-1987 Chevrolet C10 and GMC C15 trucks equipped with Wilwood one-piece Iron Pro drop spindles. It combines black Forged Narrow Superlite 6R calipers with 12.19-inch drilled and slotted one-piece hub rotors.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e140-15940-D uses six-piston radial-mount Forged Narrow Superlite 6R calipers.\u003c\/li\u003e\n\u003cli\u003eBlack powder-coated calipers with stainless-steel pistons.\u003c\/li\u003e\n\u003cli\u003e12.19 x 1.10-inch SRP drilled and slotted iron rotors.\u003c\/li\u003e\n\u003cli\u003eDual 5 x 4.75-inch and 5 x 5.00-inch hub bolt circles with 1\/2-20 studs.\u003c\/li\u003e\n\u003cli\u003eBP-10 street-performance brake pads included.\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for Wilwood one-piece Iron Pro drop spindles.\u003c\/li\u003e\n\u003cli\u003eMinimum 15-inch wheel diameter, subject to Wilwood wheel-clearance verification.\u003c\/li\u003e\n\u003cli\u003eCompatible brake flexline kit is required and sold separately.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVehicle\u003c\/th\u003e\n\u003cth\u003eYears and Requirements\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet C10\u003c\/td\u003e\n\u003ctd\u003e1963-1987; Wilwood one-piece Iron Pro drop spindles required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGMC C15\u003c\/td\u003e\n\u003ctd\u003e1963-1987; Wilwood one-piece Iron Pro drop spindles required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThis kit does not fit original-equipment spindles. Confirm spindle part number, wheel clearance, bolt circle, and brake-line selection before ordering.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWilwood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003e140-15940-D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliper\u003c\/td\u003e\n\u003ctd\u003eForged Narrow Superlite 6R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePistons\u003c\/td\u003e\n\u003ctd\u003e6 per caliper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliper finish\u003c\/td\u003e\n\u003ctd\u003eBlack powder coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor diameter\u003c\/td\u003e\n\u003ctd\u003e12.19 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor thickness\u003c\/td\u003e\n\u003ctd\u003e1.10 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor style\u003c\/td\u003e\n\u003ctd\u003eDrilled and slotted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor material\u003c\/td\u003e\n\u003ctd\u003eIron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHub material\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBolt circles\u003c\/td\u003e\n\u003ctd\u003e5 x 4.75 inches and 5 x 5.00 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum wheel diameter\u003c\/td\u003e\n\u003ctd\u003e15 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHub offset\u003c\/td\u003e\n\u003ctd\u003e+0.41 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e889545093919\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTwo 140-15940-D black six-piston front calipers\u003c\/li\u003e\n\u003cli\u003eTwo 12.19-inch drilled and slotted rotor and hub assemblies\u003c\/li\u003e\n\u003cli\u003eBP-10 brake pads\u003c\/li\u003e\n\u003cli\u003eCaliper brackets and mounting hardware\u003c\/li\u003e\n\u003cli\u003eDual-pattern hubs with wheel studs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Wilwood\u003c\/h4\u003e\u003cp\u003eWilwood designs performance brake systems around specific spindle, hub, caliper, and rotor combinations. The 140-15940-D package is engineered for early C-series trucks converted to Wilwood Iron Pro drop spindles.\u003c\/p\u003e\u003ch4\u003eRelated Parts\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWilwood Iron Pro drop spindle kit 831-15931 for 1963-1970 applications\u003c\/li\u003e\n\u003cli\u003eWilwood Iron Pro drop spindle kit 831-15932 for 1971-1987 applications\u003c\/li\u003e\n\u003cli\u003eCompatible Wilwood front flexline kit 220-7056, 220-11237, or 220-12168\u003c\/li\u003e\n\u003cli\u003eVerify every related component for the specific truck before ordering with 140-15940-D.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 140-15940-D?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is a six-piston front big brake kit with black calipers and 12.19-inch drilled and slotted hub rotors for compatible C10 and C15 trucks using Wilwood drop spindles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this kit fit original factory spindles?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo. Wilwood specifies its one-piece Iron Pro drop spindles and states that the kit will not fit original-equipment spindles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it fit both Chevrolet and GMC trucks?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. Verified fitment covers 1963-1987 Chevrolet C10 and GMC C15 applications with the required Wilwood spindles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat wheel size is required?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWilwood lists a 15-inch minimum diameter, but the specific wheel must pass the published clearance template.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre brake lines included?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo. A compatible Wilwood front flexline kit is required and sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the rotors drilled and slotted?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. This configuration uses directional SRP drilled and slotted rotors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat bolt patterns do the hubs support?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe hubs support 5 x 4.75-inch and 5 x 5.00-inch bolt circles with 1\/2-20 studs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the master cylinder included?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo. Wilwood designed the kit for compatible original-equipment master-cylinder output, but the master cylinder is not included.\u003c\/p\u003e\u003ch4\u003eInstall Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eConfirm the vehicle year, model, Wilwood Iron Pro drop spindle, wheel clearance, and selected flexline kit.\u003c\/li\u003e\n\u003cli\u003eSupport the vehicle safely and remove the front wheels and existing brake components.\u003c\/li\u003e\n\u003cli\u003eInspect and prepare the required Wilwood spindle assemblies according to their instructions.\u003c\/li\u003e\n\u003cli\u003eInstall the supplied hubs, rotors, brackets, and calipers using Wilwood hardware and torque specifications.\u003c\/li\u003e\n\u003cli\u003eInstall the BP-10 pads and verify rotor centering and caliper clearance.\u003c\/li\u003e\n\u003cli\u003eConnect the compatible front flexlines and route them clear of steering and suspension movement.\u003c\/li\u003e\n\u003cli\u003eBleed the brake system with the specified fluid and inspect every connection for leaks.\u003c\/li\u003e\n\u003cli\u003eCheck wheel clearance before final installation, then torque the wheels correctly.\u003c\/li\u003e\n\u003cli\u003eBed the pads and rotors according to Wilwood procedures before normal driving.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch4\u003eProp 65 Warning\u003c\/h4\u003e\u003cp\u003eWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. Wilwood identifies this warning as applicable to the brake pads.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":46374519701583,"sku":"WIL140-15940-D","price":1549.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/wilwood-narrow-superlite-6r-front-brake-kit-12_19in-63-87-c10-pro-spindle-wilwood.jpg?v=1786381115","url":"https:\/\/www.blackopsautoworks.com\/products\/wilwood-narrow-superlite-6r-front-hat-kit-12-19in-63-87-c10-black","provider":"Black Ops Auto Works","version":"1.0","type":"link"}