{"product_id":"wilwood-140-12549-d","title":"Wilwood Rear Dynapro Drag Brake Kit, Symmetrical Lamb\/Mark Williams End, Half-Inch Studs","description":"\u003cp\u003eWilwood's symmetrical-end rear drag kit combines single four-piston Dynapro calipers with 11.44-inch drilled Super Alloy rings. The lug-drive hat package is for the specified Lamb\/Mark Williams-style housing end, 2.81-inch axle offset and half-inch wheel studs. It is a measured custom-axle installation rather than a vehicle-model-specific service brake replacement. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized applications.\u003c\/p\u003e\u003ch2\u003eTechnical Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 140-12549-D\u003c\/li\u003e\n\u003cli\u003eType: Dynapro SA Lug Drive Dynamic Rear Drag Brake Kit\u003c\/li\u003e\n\u003cli\u003eCalipers: Dynapro Lug Mount; 4 pistons per caliper; Type III Anodize.\u003c\/li\u003e\n\u003cli\u003eCaliper bore sizes: 1.75, 1.75 inches. Piston type: Stainless.\u003c\/li\u003e\n\u003cli\u003eIncluded pad compound: BP-28.\u003c\/li\u003e\n\u003cli\u003eRotors: 11.44-inch diameter × 0.35-inch thickness; Drilled; Super Alloy; Plain surface; solid, unvented.\u003c\/li\u003e\n\u003cli\u003eRear housing end: Symmetrical End.\u003c\/li\u003e\n\u003cli\u003eRequired axle flange offset: 2.81 inches.\u003c\/li\u003e\n\u003cli\u003eWheel bolt circles: 5 X 4.50; 5 X 4.75; 5 X 5.00 inches.\u003c\/li\u003e\n\u003cli\u003eIncluded: paired calipers, pads, rotors, mounting brackets and assembly hardware, rotor hats.\u003c\/li\u003e\n\u003cli\u003eHydraulic lines and fittings selected separately. No master cylinder, booster or spindles are supplied.\u003c\/li\u003e\n\u003cli\u003eConditional wheel screening size: 15 inches. Use the installation clearance diagram to verify the actual barrel and spoke profile.\u003c\/li\u003e\n\u003cli\u003eWheel-stud selection: half-inch wheel studs as specified by the installation drawing; the selected hat has 0.520-inch clearance holes.\u003c\/li\u003e\n\u003cli\u003eAxle-flange limit: 6.29-inch maximum outside diameter with the specified 0.050-inch × 45-degree chamfer. Match the register and stud configuration to the exact installation drawing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eUse DS911 and the axle worksheet to compare housing bolt spacing, bearing diameter and rotor registration. Verify that the selected hat pattern matches the wheel studs and that the axle flange clears the rotor assembly. The 0.35-inch solid ring is part of a drag-racing package, so establish the intended duty and system balance with Wilwood. Hydraulic hoses and fittings are separate from the supplied mechanical brake hardware.\u003c\/p\u003e\u003cp\u003eWilwood installation documents: \u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds911.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\u003cp\u003ePMB Performance has over 20 years of brake-system experience. Contact us with your vehicle details and installed brake hardware for help confirming the correct arrangement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCalifornia Proposition 65 warning, brake pads only:\u003c\/strong\u003e WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\"\u003ewww.p65warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67765574828210,"sku":"140-12549-D","price":1070.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/140-12549-D_kit-xl.jpg?v=1792520875","url":"https:\/\/pmbperformance.com\/products\/wilwood-140-12549-d","provider":"PMB Performance","version":"1.0","type":"link"}