{"product_id":"wilwood-140-16989-r","title":"Wilwood Rear 12.19-Inch Rotor Kit with Red Dynalite Internal Calipers for BOP 2.75-Inch Bearing Axles, Plain","description":"\u003cp\u003eThis staggered rear brake conversion combines four-piston Dynalite Internal service calipers with 12.19-inch rotors and internal drum parking-brake assemblies. The axle interface is the BOP 2.75-inch bearing flange with a 2.75-inch axle offset. Red calipers and 12.19-inch plain face rotors are the selected configuration. Based in Camarillo, California, Wilwood Engineering was established by Bill Wood in 1977. Its disc brake systems serve motorsport, street-performance and specialized applications. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are matched to the requirements of the whole system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 140-16989-R. One kit for the documented axle\/application.\u003c\/li\u003e\n\u003cli\u003eRotors: 12.19-inch outside diameter × 0.81-inch thickness, plain faces, Iron material.\u003c\/li\u003e\n\u003cli\u003eCalipers: Forged Dynalite Internal, 4 pistons, stainless piston material. Lug mount and red powder coat finish.\u003c\/li\u003e\n\u003cli\u003ePublished piston bores: 1.38, 1.38 inches. Included pads: BP-10.\u003c\/li\u003e\n\u003cli\u003eMatching existing wheel hubs are retained; replacement hubs are not included.\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet: 1\/8-27 NPT.\u003c\/li\u003e\n\u003cli\u003eNominal wheel minimum: 15 inches; verify the complete caliper profile against the wheel drawing.\u003c\/li\u003e\n\u003cli\u003eFlexlines are not included. Choose the required hydraulic hoses and adapters separately.\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\u003ePads and mounting hardware are included. Spindles, master cylinder and brake booster are separate.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eMeasure the rear axle before choosing the Dynalite package: the required BOP bearing flange is 2.75 inches, axle offset is 2.75 inches, and the bracket set is staggered for the corresponding shock arrangement. DS-1530 identifies the 1964–1970 Buick\/Oldsmobile\/Pontiac axle family without establishing a particular model here. The axle flange may be no larger than 6.61 inches with the documented chamfer. Check rotor register and 1\/2-inch stud holes; smaller factory studs may need a machine-shop conversion. Cables, cable fittings\/adapters and hydraulic hoses\/fittings are separate purchases.\u003c\/p\u003e\u003cp\u003ePMB Performance has 20+ years of experience with parts and fitment details. Share your current brake setup, intended use and mounting measurements so we can help check the complete installation.\u003c\/p\u003e\u003cp\u003eManufacturer documentation: \u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds1530.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":67757525926066,"sku":"140-16989-R","price":1132.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/140-16989-R_kit-xl.jpg?v=1792450369","url":"https:\/\/pmbperformance.com\/products\/wilwood-140-16989-r","provider":"PMB Performance","version":"1.0","type":"link"}