{"product_id":"wilwood-140-16989-dr","title":"Wilwood Rear Dynalite Internal Conversion with 12.19-Inch Drilled\/Slotted Rotors and Red Calipers, BOP 2.75-Inch Bearing Axles","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. Red calipers and 12.19-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\u003eKit supplied under manufacturer part number 140-16989-DR; one listed axle\/application assembly.\u003c\/li\u003e\n\u003cli\u003eEach service caliper uses 4 stainless pistons and the Forged Dynalite Internal body design. It attaches through lug mounts and carries a red powder coat finish.\u003c\/li\u003e\n\u003cli\u003eVerify the existing hub dimensions: replacement wheel hubs are outside the scope of this package.\u003c\/li\u003e\n\u003cli\u003eA 15-inch nominal wheel is the starting point. Its spoke and barrel shape must clear the actual brake assembly.\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\u003eThe rotor friction surfaces are SRP drilled \u0026amp; slotted. The assembly diameter is 12.19 inches; rotor width is 0.81 inch and material is Iron.\u003c\/li\u003e\n\u003cli\u003eAn axle pad set in BP-10 compound accompanies the calipers, whose published bores are 1.38, 1.38 inches.\u003c\/li\u003e\n\u003cli\u003eThe specified caliper hydraulic connection is 1\/8-27 NPT.\u003c\/li\u003e\n\u003cli\u003eThis package excludes flexible brake hoses. Select the documented caliper and chassis-end connections separately.\u003c\/li\u003e\n\u003cli\u003eMounting hardware and brake pads come with the kit. Spindles, a master cylinder and a brake booster are not included.\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\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\/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":67757525893298,"sku":"140-16989-DR","price":1274.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/140-16989-DR_kit-xl.jpg?v=1792450368","url":"https:\/\/pmbperformance.com\/products\/wilwood-140-16989-dr","provider":"PMB Performance","version":"1.0","type":"link"}