{"product_id":"wilwood-140-13304-d","title":"Wilwood Black Front Superlite 6R Conversion for Bronco Drum Spindles (1966–1975), 12.88-Inch SRP Rotors","description":"\u003cp\u003eSRP drilled-and-slotted rotors distinguish this 12.88-inch Bronco front package. Black six-piston radial-mount calipers, hats and included hoses are supplied for the documented original drum-spindle installation. Disc brake system design and manufacturing are Wilwood Engineering’s focus. Bill Wood founded the Camarillo, California company in 1977; its range spans brake rotors, master cylinders, calipers, fittings, valves and brake lines for motorsport, specialized and street-performance applications. The choice of individual components depends on the complete brake system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 140-13304-D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication and package:\u003c\/strong\u003e Front Brake Kits - Street Performance; Front Kits; Disc; Sold as a kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliper assembly:\u003c\/strong\u003e Forged Narrow Superlite 6R; 6 pistons per caliper; Forged Aluminium body; Radial mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston and finish specification:\u003c\/strong\u003e Stainless pistons; Black calipers; Black Powder Coat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic inlet:\u003c\/strong\u003e 1\/8-27 NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel bolt pattern(s):\u003c\/strong\u003e 5 x 5.5 in; 5 x 139.7 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStud-hole \/ clearance provision:\u003c\/strong\u003e 0.640 in; 16.26 mm; diameter provision, not a thread designation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel diameter starting requirement:\u003c\/strong\u003e 17 in; 431.8 mm; verify the individual wheel against the installation drawing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded mechanical components:\u003c\/strong\u003e Mounting hardware: Yes; hub(s): No; spindle(s): No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic components supplied:\u003c\/strong\u003e Master cylinder: No; brake booster: No; brake lines: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecified pad compound:\u003c\/strong\u003e BP-10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparate rotor-hat specification:\u003c\/strong\u003e Aluminum; Black E-Coat; offset current exact kit and hat pages list 1.000 inch, while the linked installation parts list labels 1.300 inches; manufacturer confirmation required before relying on this dimension; part 170-13314\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePublished wheel-position \/ hub offset:\u003c\/strong\u003e +.00 inch per side; verify against the documented spindle assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor dimensions:\u003c\/strong\u003e 12.88 in; 327.15 mm outside diameter; 1.25 in; 31.75 mm thickness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor construction:\u003c\/strong\u003e Spec-37 Iron; Vented; SRP Drilled \u0026amp; Slotted\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eUse DS1009 to identify the Dana 30\/44 drum-spindle assembly or its separately documented GM disc-conversion mounting path. These paths use different bolt and spacer arrangements; compare the installed hub, axle\/drum qualifications and complete wheel profile before assembly.\u003c\/p\u003e\u003cp\u003eDocumented model groups, subject to each year, submodel and spindle\/axle qualification: Ford Bronco. Application distinctions include 2700 Lbs Axle, 10\" inch Drum Brakes; 3300 Lbs Axle, 11\" inch Drum Brakes; 2900 Lbs Axle, 10\" inch Drum Brakes.\u003c\/p\u003e\u003cp\u003eBronco drum-spindle applications: 1966–1973 with 2700-lb axle and 10-inch drums;1966–1975 with 3300-lb axle and 11-inch drums;1974–1975 with 2900-lb axle and 10-inch drums. Confirm the actual axle rating and spindle.\u003c\/p\u003e\u003cp\u003eThe original hub has a 3.57-inch drum-register step. The wheel must seat flush on the hub face; a separately supplied wheel spacer is needed if that step interferes.\u003c\/p\u003e\u003cp\u003eDS1009 additionally documents a GM disc-conversion mounting path with a different bolt\/spacer arrangement. Identify the actual converted spindle and use that specific assembly procedure; the drum path is not interchangeable.\u003c\/p\u003e\u003cp\u003eThe included stainless steel braided hydraulic hose kit is 220-13319, listed as 14.00 inches. Route it with adequate steering and suspension clearance.\u003c\/p\u003e\u003ch3\u003eManufacturer References\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/BrakeKits\/BrakeKitsProdFront?itemno=140-13304-D\"\u003eWilwood exact kit specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds1009.pdf\"\u003eWilwood installation instructions DS1009\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePMB Performance brings over 20 years of experience to brake-component selection. Provide the actual hardware specification when the brake system has been modified.\u003c\/p\u003e\u003cp\u003eReview the complete application table below with the year, submodel and installation qualifications above.\u003c\/p\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\u003e1966-1973\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eBronco\u003c\/td\u003e\n\u003ctd\u003e2700 Lbs Axle, 10\" inch Drum Brakes\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966-1975\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eBronco\u003c\/td\u003e\n\u003ctd\u003e3300 Lbs Axle, 11\" inch Drum Brakes\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1974-1975\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eBronco\u003c\/td\u003e\n\u003ctd\u003e2900 Lbs Axle, 10\" inch Drum Brakes\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67755880874162,"sku":"140-13304-D","price":2306.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/140-13304-D_kit-xl.jpg?v=1792431369","url":"https:\/\/pmbperformance.com\/products\/wilwood-140-13304-d","provider":"PMB Performance","version":"1.0","type":"link"}