{"product_id":"wilwood-140-13323","title":"Wilwood Rear Black Superlite 4R Brake Kit, 12.88-Inch GT Rotors and Parking Brake for Big Ford Bronco Axles","description":"\u003cp\u003eThe slotted 12.88-inch rear kit pairs black Superlite 4R calipers with iron hats and internal parking-brake hardware. Big Ford Bronco brackets locate the radial calipers at the specified axle offset. Wilwood Engineering has designed and manufactured disc brake systems since Bill Wood founded it in 1977. Its Camarillo, California operation supplies calipers, master cylinders, brake rotors, valves, fittings and lines for specialized, street-performance and motorsport applications. Each component must be chosen to match 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 140-13323\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication and package:\u003c\/strong\u003e Rear Brake Kits - Street Performance; Rear Kits; Disc; Parking; Sold as a kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor dimensions:\u003c\/strong\u003e 12.88 in; 327.15 mm outside diameter; 1.10 in; 27.94 mm thickness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor construction:\u003c\/strong\u003e Spec-37 Iron; Vented; GT Slotted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliper assembly:\u003c\/strong\u003e Forged Narrow Superlite 4R; 4 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\u003eRear axle-end interface:\u003c\/strong\u003e Big Ford Bronco; axle\/flange offset 2.36 in; 59.94 mm\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: No\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 Iron; Black E-Coat; offset 1.540 inch; part 170-13326\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eUse DS1018 to verify the Big Ford flange and 2.36-inch offset, together with the 5 x 5.50-inch rotor pattern. Check the complete wheel profile before selecting the separate cables and hoses.\u003c\/p\u003e\u003cp\u003eMeasure the axle flange and register before mounting the brake: the flange must be no larger than 6.61 inches, with a 0.050-inch chamfer at 45 degrees. Use the instructions for the 2.88-inch register and its centering adapters as applicable, alongside the required offset and housing pattern.\u003c\/p\u003e\u003cp\u003eThe installation reference identifies Big Ford Bronco rear applications with 3300-lb axle\/11-inch drums for 1966–1975 and the listed 1976–1977 configurations. Verify the actual flange,2.36-inch offset and axle register.\u003c\/p\u003e\u003cp\u003eHydraulic hoses\/fittings and parking-brake cables, adapters and cable hardware are not included. Choose a compatible cable arrangement for the internal parking brake; universal cable systems may require vehicle or cable modifications.\u003c\/p\u003e\u003ch3\u003eManufacturer References\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/BrakeKits\/BrakeKitsProdRear?itemno=140-13323\"\u003eWilwood exact kit specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds1018.pdf\"\u003eWilwood installation instructions DS1018\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/Images\/BrakeKits\/Axle-Offset-Worksheet-Wilwood.pdf\"\u003eAxle measurement worksheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAsk PMB Performance for help comparing the installation requirements. We have more than 20 years of experience working with brake parts and fitment.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67755882971314,"sku":"140-13323","price":2299.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/140-13323_kit-xl.jpg?v=1792431388","url":"https:\/\/pmbperformance.com\/products\/wilwood-140-13323","provider":"PMB Performance","version":"1.0","type":"link"}