{"product_id":"wilwood-140-16907-d","title":"Wilwood Front Dynapro Radial Hub-Rotor Conversion for Chevrolet Tri-Five ProSpindle Cars (1955–1957), Black and Drilled\/Slotted \/ 12.19 Inch","description":"\u003cp\u003eBlack calipers and 12.19-inch SRP drilled \u0026amp; slotted rotors are the selected configuration. This Narrow Dynapro Radial front brake conversion combines four-piston calipers, 12.19-inch rotor rings, separate hats and replacement aluminum hubs. It is built around the Wilwood two-inch-drop ProSpindle interface. Wilwood Engineering, founded in 1977 by Bill Wood, is based in Camarillo, California. The company makes disc brake systems and components for motorsport, street-performance and specialized applications, including calipers, brake rotors, master cylinders, valves, fittings and brake lines. Each component must suit the surrounding brake system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOrder specification: manufacturer part number 140-16907-D; quantity one brake kit.\u003c\/li\u003e\n\u003cli\u003eThe piston diameter specification is 1.75, 1.75 inches, paired with BP-10 brake pads.\u003c\/li\u003e\n\u003cli\u003eHats are made from aluminum with a black e-coat surface treatment. Their offset dimension is 1.430 inch.\u003c\/li\u003e\n\u003cli\u003eAluminum hubs, bearings and seals are supplied. Wheel pattern choices: 5 x 4.50, 5 x 4.75 inches, with 1\/2-20 studs.\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\u003ePads and mounting hardware are included. Spindles, master cylinder and brake booster are separate.\u003c\/li\u003e\n\u003cli\u003eBrake rotor specification: SRP Drilled Rotor, with SRP drilled \u0026amp; slotted friction faces. Overall size is 12.19 × 0.81 inches. Material: Iron.\u003c\/li\u003e\n\u003cli\u003eRadial-mounted Dynapro Radial Mount calipers are supplied. Each has 4 pistons in stainless, with black powder coat on the caliper body.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eWilwood ProSpindle 831-16660 is the required front spindle and is sold separately. This Dynapro assembly places new hubs and 12.19-inch rotor\/hat units on that spindle, with a published 0.34-inch outward track change per side. Use the original steering arms and their specified hardware. The vehicle rows cover 1955–1957 Bel Air, Nomad, One-Fifty, Sedan Delivery and Two-Ten, with Del Ray listed for 1957. Check the hub wheel pattern, hose selection and 15-inch wheel envelope. Read the fitment table below for the exact year and option combination; do not apply one row's restrictions to another vehicle.\u003c\/p\u003e\u003cp\u003eFor help selecting the correct brake package, give PMB Performance the vehicle details and measurements of the installed hardware. Our 20+ years of parts experience help resolve fitment beyond a model name alone.\u003c\/p\u003e\u003cp\u003eManufacturer documentation: \u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds1514.pdf\"\u003eInstallation instructions\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\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\u003e1955-1957\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eBel Air\u003c\/td\u003e\n\u003ctd\u003eVehicles using WWE Tri Five ProSpindle.\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1955-1957\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eNomad\u003c\/td\u003e\n\u003ctd\u003eVehicles using WWE Tri Five ProSpindle.\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1955-1957\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eOne-Fifty Series\u003c\/td\u003e\n\u003ctd\u003eVehicles using WWE Tri Five ProSpindle.\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1955-1957\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSedan Delivery\u003c\/td\u003e\n\u003ctd\u003eVehicles using WWE Tri Five ProSpindle.\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1955-1957\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eTwo-Ten Series\u003c\/td\u003e\n\u003ctd\u003eVehicles using WWE Tri Five ProSpindle.\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1957\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eDel Ray\u003c\/td\u003e\n\u003ctd\u003eVehicles using WWE Tri Five ProSpindle.\u003c\/td\u003e\n\u003ctd\u003eDrop\u003c\/td\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003ctd\u003eFront Kit\u003c\/td\u003e\n\u003ctd\u003e1, 2, 3, 4\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":67757525172402,"sku":"140-16907-D","price":1431.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/140-16907-D_kit-xl.jpg?v=1792450350","url":"https:\/\/pmbperformance.com\/products\/wilwood-140-16907-d","provider":"PMB Performance","version":"1.0","type":"link"}