{"product_id":"wilwood-140-16988-dr","title":"Wilwood Rear Brake Kit for BOP 2.75-Inch Bearing Axles with Red Dynapro Low-Profile Calipers and 11-Inch Drilled\/Slotted Rotors","description":"\u003cp\u003eThis staggered rear brake conversion combines four-piston Dynapro Low-Profile service calipers with 11.00-inch rotors and internal drum parking-brake assemblies. Red calipers and 11.00-inch SRP drilled \u0026amp; slotted rotors are the selected configuration. The axle interface is the BOP 2.75-inch bearing flange with a 2.75-inch axle offset. Bill Wood founded Wilwood Engineering in 1977; the company is based in Camarillo, California. Wilwood designs and manufactures calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized systems, with selection governed by the complete brake installation.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eProduct identification: Wilwood 140-16988-DR. Package quantity: one kit for the stated configuration.\u003c\/li\u003e\n\u003cli\u003eThe brake package includes pads and required mounting hardware, excluding spindles, master cylinder and booster.\u003c\/li\u003e\n\u003cli\u003eDrum parking-brake assemblies are included inside the rotor hats. Supply parking cables, cable hardware\/adapters and hydraulic hoses\/fittings separately.\u003c\/li\u003e\n\u003cli\u003eHydraulic line selection is a separate purchase. Check hose length, adapters and routing before assembly.\u003c\/li\u003e\n\u003cli\u003eCheck the wheel-clearance diagram before purchase; the nominal minimum wheel diameter is 14 inches.\u003c\/li\u003e\n\u003cli\u003eConnect the hydraulic line through the 1\/8-27 NPT caliper inlet.\u003c\/li\u003e\n\u003cli\u003eThis assembly leaves the documented wheel hubs in use. It supplies brake components rather than new hubs.\u003c\/li\u003e\n\u003cli\u003ePiston sizing follows the published 1.38, 1.38-inch specification. The included brake-pad compound is BP-10.\u003c\/li\u003e\n\u003cli\u003eCaliper selection is 4-piston Forged Dynapro Low Profile. Body finish: red powder coat; attachment: lug; piston material: stainless.\u003c\/li\u003e\n\u003cli\u003eRotor package uses SRP Drilled Rotor \u0026amp; Hat components. Each is 0.81 inch thick with 11.00-inch diameter and SRP drilled \u0026amp; slotted faces. Published material: Iron.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eUse measured axle dimensions: BOP 2.75-inch bearing flange, 2.75-inch offset and the staggered shock\/caliper layout. DS-1529 describes the 1964–1970 Buick\/Oldsmobile\/Pontiac axle arrangement, but no particular vehicle model is established here. Confirm the flange drawing, rotor register and axle-flange maximum of 6.61 inches with the specified chamfer. The rotor hat is drilled for 1\/2-inch wheel studs; upgrading smaller studs may require machining. Hydraulic hoses\/fittings and parking cables, hardware or adapters are not supplied.\u003c\/p\u003e\u003cp\u003eWith over 20 years of parts and application experience, PMB Performance can help compare this assembly with your existing brakes. Supply the hub, axle or spindle specification and wheel-clearance information before ordering.\u003c\/p\u003e\u003cp\u003eManufacturer documentation: \u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds1529.pdf\"\u003eInstallation instructions\u003c\/a\u003e; \u003ca href=\"https:\/\/www.wilwood.com\/Images\/BrakeKits\/Axle-Offset-Worksheet-Wilwood.pdf\"\u003eTechnical bulletin\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eManufacturer Warning\u003c\/h3\u003e\u003cp\u003eApplicable to brake pads only: Wilwood warns of exposure to arsenic, cadmium, hexavalent chromium compounds, lead, nickel, cobalt and antimony trioxide, chemicals known to California to cause cancer or reproductive harm. More information:\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.P65Warnings.ca.gov\/\"\u003eP65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67757525762226,"sku":"140-16988-DR","price":1256.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/140-16988-DR_kit-xl.jpg?v=1792450364","url":"https:\/\/pmbperformance.com\/products\/wilwood-140-16988-dr","provider":"PMB Performance","version":"1.0","type":"link"}