{"title":"Mark Williams 12\" Modular","description":"","products":[{"product_id":"mw-12","title":"MW 12 (7075)","description":"\u003cp\u003e\u003cspan\u003eUses 1480 u-joint. End of pinion yoke to u-joint center (\"B\") is 3-7\/8\". 2.375” diameter for computer pick up ring. Produced from 7075 aluminum and finished with exclusive MW gold coating process. All machining is done in relationship to the spline pitch diameter to ensure each yoke is symmetrical for balance and smooth operation. Utilizes billet steel cap kit for added strength. - Sold separately. Weight 1.2#\u003c\/span\u003e\u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52297259581805,"sku":"39973","price":425.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/39973_1629521a-fbc1-4e3c-937b-217afd824696.jpg?v=1760712186"},{"product_id":"mw-12-40-spline-pinion-yoke","title":"MW 12\" 1480 40 Spline Extreme Duty 4340 Billet Steel Pinion Yoke","description":"\u003cp class=\"p1\"\u003eMark Williams Extreme Duty 4340 billet steel pinion yokes offer ultimate strength for your pinion yoke which is a high stress area on any rear differential. This Mark Williams 12\" 1480 U joint style yoke is designed to work with 40 spline pinion. All machining is done in relationship to the spline pitch diameter to ensure each yoke is symmetrical for balance and smooth operation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eFits MW 12\" Rearend\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e40 spline yoke\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eHigh strength 4340 steel construction\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eThru Hardened for ultimate strength\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eBlack Oxide finished\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e1480 U-Joint\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e3.875\" End of Pinion Yoke to U Joint Center (B dimension)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eUtilizes 2.375\" ID driveshaft collar : \u003ca rel=\"noopener\" title=\"RIFE driveshaft speed sensor kits\" href=\"https:\/\/mwdriveline.myshopify.com\/collections\/driveshaft-speed-sensor\" target=\"_blank\"\u003eClick Here For Options\u003c\/a\u003e\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eUtilizes 1350 billet steel cap kit (39112) for added strength. Add in options below or \u003ca href=\"https:\/\/mwdriveline.myshopify.com%20%E2%80%BA%20products%20%E2%80%BA%20billet-u-bolt-u-joint-kit-1350\"\u003e\u003cspan class=\"s2\"\u003eClick Here\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/mwdriveline.myshopify.com%20%E2%80%BA%20products%20%E2%80%BA%20billet-u-bolt-u-joint-kit-1480\"\u003e\u003cspan class=\"s2\"\u003e \u003c\/span\u003e\u003c\/a\u003eto view\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52357363335533,"sku":"39073","price":339.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/39073_919df84c-9251-455c-878b-146fd49cb712.jpg?v=1760712235"},{"product_id":"mw-12-40-spline-pinion-yoke-1","title":"MW 12\" 40 spline 1350 Series Ultralight 7075 Aluminum Pinion Yoke","description":"\u003cp\u003e\u003cspan\u003eMark Williams Ultralight 7075 billet aluminum pinion yokes offer a high strength and lightweight pinion yoke option for your rear differential. This Mark Williams 12\" style yoke is designed to work with 40 spline pinion. All machining is done in relationship to the spline pitch diameter to ensure each yoke is symmetrical for balance and smooth operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMark Wiliams 12\" rear ends\u003c\/li\u003e\n\u003cli\u003e40 spline yoke\u003c\/li\u003e\n\u003cli\u003eHeat treated 7075 aluminum\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBlack Anodized\u003c\/li\u003e\n\u003cli\u003e1350 U-Joint\u003c\/li\u003e\n\u003cli\u003e3.830\" End of Pinion Yoke to U Joint Center (B dimension)\u003c\/li\u003e\n\u003cli\u003eUtilizes 2.187\" ID driveshaft collar : \u003ca rel=\"noopener\" title=\"RIFE driveshaft speed sensor kits\" href=\"https:\/\/mwdriveline.myshopify.com\/collections\/driveshaft-speed-sensor\" target=\"_blank\"\u003eClick Here For Options\u003c\/a\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeighs 2.5 lb\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUtilizes 1350 billet steel cap kit (39112) for added strength. Add in options below or \u003ca title=\"1350 Mark William billet strap kit\" href=\"https:\/\/mwdriveline.myshopify.com%20%E2%80%BA%20products%20%E2%80%BA%20billet-u-bolt-u-joint-kit-1350\"\u003eClick Here\u003c\/a\u003e\u003ca title=\"1480 Mark William billet strap kit\" href=\"https:\/\/mwdriveline.myshopify.com%20%E2%80%BA%20products%20%E2%80%BA%20billet-u-bolt-u-joint-kit-1480\"\u003e \u003c\/a\u003eto view\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52383275647341,"sku":"39037","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/39037_dfd982c7-8c8e-4108-8ae0-662a70ecf6d7.jpg?v=1760712371"},{"product_id":"third-member-gear-oil-pump-assembly","title":"Third Member Gear Oil Pump Assembly","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eGear pump moves oil back to the pinion support and ring gear. Prevents oil starvation from acceleration g-force.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMW 9\" and 12\" modular rears are set up to accept a fluid pump to circulate rear end lubricant from the back of the housing forward to the pinion bearings and the gear contact area to extend bearings and ring and pinion life. Pump is driven off the rear of the pinion shaft. Pump assembly includes pump shaft, required fittings, braided hose, and fasteners. Requires 3\/8\" hex in pinion shaft \u003c\/p\u003e\n\u003cp\u003eInstallation Instructions: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/sb0055.pdf?v=1757989911\" target=\"_blank\" rel=\"noopener\"\u003eClick Here\u003c\/a\u003e\u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52411681997165,"sku":"91100","price":659.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/91100.jpg?v=1760721475"},{"product_id":"mw-12-pro-gears","title":"MW Modular 12\" Pro Gears 9310 Ring and Pinion Gear Set","description":"\u003cp\u003e\u003cstrong\u003eNote: Don't see the ratio you need? We are adding new ratios daily, give us a call\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMW 12\" modular ring and pinions are made of 9310 pro gear material, fits MW modular differentials, uses 14 ring gear bolts, has a 9\/16\"-18 thread, 2.167\" rear bearing diameter, and 40-spline input. Pinion shafts have a 3\/8\" hex for oil pump drive. \u003c\/span\u003e\u003c\/p\u003e\n\u003caddress\u003eSeries 1 gears use\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e53108 \u003c\/strong\u003espool or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e90030\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecarrier.\u003c\/address\u003e\u003caddress\u003eSeries 2 gears use\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e53104\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003espool or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e90034\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecarrier.\u003c\/address\u003e\u003caddress\u003e\u003c\/address\u003e\u003caddress\u003e\u003c\/address\u003e\n\u003cp\u003eManufactured from ultra-tough \u003cstrong data-end=\"371\" data-start=\"357\"\u003e9310 steel\u003c\/strong\u003e, these gears are specifically engineered for drag racing and competition use where extreme torque loads and high horsepower are the demanded. Unlike street gears, Pro Gears are designed for the strip, trading longevity for the ability to withstand repeated hard launches and shock loading without failure.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eGleason Gears: \u003cspan\u003eM\/W-Gleason 12” Gears are produced from 9310 alloy. These Ring and Pinions are the next step in durable gearing. The M\/W Gleason series gears have a ground tooth form and are Cold Stabilized, Shot Peened and REM isotropic surface finished. These gears fit MW modulars with series 2 spool (P\/N  53104) .  Pinion shaft has a 3\/8\" hex for oil pump drive. These Gears are the latest improvement for the 12” Modular Rears.\u003c\/span\u003e\u003c\/em\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eRegal-Beloit Gears: Precision-engineered solutions for industrial and heavy-duty applications. Built to handle demanding environments, these gears are designed for efficiency, reliability, and long service life across multiple industries.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e12\" ring gear diameter\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e40 spline pinion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2.167 Pinion Stem\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e9310 material\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3\/8 Hex Oil Pump Drive\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e14 Ring Gear Bolts\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable in the following gear ratios:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2.91 - Series 1 (Regal-Beloit)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.20 - Series 2 (Regal-Beloit)\u003c\/li\u003e\n\u003cli\u003e3.89 - Series 2 (Regal-Beloit)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4.11 - Series 2 (Regal-Beloit)\u003c\/li\u003e\n\u003cli\u003e4.29 - Series 2 (Regal-Beloit)\u003c\/li\u003e\n\u003cli\u003e4.44 - Series 2 (Gleason Gear)\u003c\/li\u003e\n\u003cli\u003e4.57 - Series 2 (Gleason Gear)\u003c\/li\u003e\n\u003cli\u003e4.71 - Series 2 (Gleason Gear)\u003c\/li\u003e\n\u003cli\u003e5.00 - Series 2 (Gleason Gear)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e5.14 - Series 2 (Gleason Gear)\u003c\/li\u003e\n\u003cli\u003e5.43 - Series 2 (Gleason Gear)\u003c\/li\u003e\n\u003cli\u003e5.83 - Series 2 (Regal-Beloit)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAdd On Gear Treatments:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupra-Fin Polish Ring Gear\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUBZ - Subzero Treatment for Ring Gear\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePEEN-02 - Shot Peen Ring Gear\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLRG - Lighten Ring Gear\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eNOTE: 9310 Pro Gears are \u003cstrong data-end=\"1986\" data-start=\"1955\"\u003enot intended for street use,\u003c\/strong\u003e their softer composition maximizes shock absorption but results in shorter wear life under constant driving.\u003c\/span\u003e\u003c\/p\u003e","brand":"MW Driveline","offers":[{"title":"2.91","offer_id":52702783832429,"sku":"729-0121","price":1500.0,"currency_code":"USD","in_stock":true},{"title":"3.20 - Series 2 (Regal-Beloit)","offer_id":52492714934637,"sku":"729-0320","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"3.70 (Gleason Gear)","offer_id":52492714901869,"sku":"729-0121","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"3.89 - Series 2 (Regal-Beloit)","offer_id":52492714967405,"sku":"729-0120","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"4.11 - Series 2 (Regal-Beloit)","offer_id":52492715000173,"sku":"729-0115","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"4.29 - Series 2 (Regal-Beloit)","offer_id":52492715032941,"sku":"729-0116","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"4.44 - Series 2 (Gleason Gear)","offer_id":52492715065709,"sku":"729-0132","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"4.57 - Series 2 (Gleason Gear)","offer_id":52492715098477,"sku":"729-0117","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"4.71 - Series 2 (Gleason Gear)","offer_id":52492715131245,"sku":"729-0118","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"5.00 - Series 2 (Gleason Gear)","offer_id":52492715164013,"sku":"729-0135","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"5.14 -Series 2 (Gleason Gear)","offer_id":52492715196781,"sku":"729-0136","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"5.43 -Series 2 (Gleason Gear)","offer_id":52493755187565,"sku":"729-0134","price":3000.0,"currency_code":"USD","in_stock":true},{"title":"5.83 - Series 2 (Regal-Beloit)","offer_id":52493755220333,"sku":"729-0124","price":3000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/Ford_10_Gleason.webp?v=1760975924"},{"product_id":"mw-modular-12-40-spline-open-carrier","title":"MW Modular 12\" 40 spline Open Carrier Series 1","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eMW manufactures steel billet open carriers for 9\" Ford and the MW 12\" Modular. The 9\" unit utilizes 31-spline axle gears and 4 pinion gears. The bearing journals are oversize and require a 3.250\" bore case. The 12\" carrier is also a 4 pinion design fro heat treated 4140 and is available with 40 or 35-spline axle side gears. The 12\" carrier is available for 2.91 and 3.20 ratios and 3.73 thru 5.83 ratios.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eSpecial 4140 billet housing and four spider gears for 2.91 and 3.20 ratio gears. (Series 1)\u003c\/span\u003e\u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52571169227117,"sku":"90030","price":3240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/9003.jpg?v=1761693046"},{"product_id":"mw-modular-12-40-spline-open-carrier-copy","title":"MW Modular 12\" 40 spline Open Carrier Series 2","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eMW manufactures steel billet open carriers for 9\" Ford and the MW 12\" Modular. The 9\" unit utilizes 31-spline axle gears and 4 pinion gears. The bearing journals are oversize and require a 3.250\" bore case. The 12\" carrier is also a 4 pinion design fro heat treated 4140 and is available with 40 or 35-spline axle side gears. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSpecial 4140 billet housing and four spider gears for 3.73 and 5.83 ratio gears. (Series 2)\u003c\/span\u003e\u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52571170013549,"sku":"90034","price":3240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/9003.jpg?v=1761693046"},{"product_id":"housing-end-studs-hd-ends-set-of-8","title":"3\/8\" Axle Housing End Stud Kit (HD Ends)","description":"\u003cp\u003e3\/8\" HD Housing end stud kit \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese studs are machined and heat treated in house. To be used for pro mod housing ends or MW modular housing ends. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIncludes \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(8) 3\/8\" Studs\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(8) 3\/8 locking nuts\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(8) washers\u003c\/span\u003e\u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52571638890861,"sku":"58572","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/58572.png?v=1777918635"},{"product_id":"ford-9-35-spline-pinion-nut-copy","title":"9\" Ford pinion seal for 40 spline or 12\" pinion","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSeal for 40 spline pinion gears used in the 12\" or 57650 (now obsolete) support.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52571639710061,"sku":"57912","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/57912.600.jpg?v=1758451575"},{"product_id":"40-spline-4140-steel-pinion-female-coupler-mw-modular-12","title":"40 spline 4140 Steel Pinion Female Coupler MW 12\"","description":"\u003cp\u003e40 spline 4140 Steel Pinion Female Coupler MW Modular 12\"\u003c\/p\u003e\n\u003cp\u003ePN 40045\u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52589707985261,"sku":"40045","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/40750.jpg?v=1762106151"},{"product_id":"driveshaft-safety-look-mw-12-thirdmember","title":"Driveshaft Safety Loop (MW 12\" Thirdmember)","description":"\u003cp\u003e\u003cspan\u003eDriveshaft Safety Loop\u003c\/span\u003e\u003cspan\u003e (MW 12\" Thirdmember)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis loop attaches directly to the differential third member eliminating tubular structures that attach to the chassis. The front section is removable by four retaining bolts allowing easy drive shaft removal. The open design also allows removal of the rear universal retaining bolts that are impossible with enclosed tube designs. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eConstructed from 4130 material, this satisfies the \u003cstrong\u003eNHRA\u003c\/strong\u003e rule requirements for a \"retainer loop 360 degrees of enclosure\". \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnit is unpainted.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52619338613101,"sku":"90725","price":295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/57625.600.jpg?v=1760472274"},{"product_id":"mw-12-modular-complete-w-carbon-fiber-brakes","title":"MW 12\" Modular Pro 4-link Rear End Complete w\/ Carbon Fiber Brakes","description":"\u003cp\u003eThis is a complete full floater assembly ready to run. Includes Mark Williams 12\" pitch diameter ring and pinion with 40-spline pinion shaft ~ \u003cem\u003e\u003cstrong\u003eCustom gear ratios now available! \u003c\/strong\u003e\u003c\/em\u003e~, ball bearing pinion support, 40-spline forged steel yoke, 40-spline aluminum spool, 1\/4\" thick 4130 steel 4-link brackets, floater spindles, end bells, carbon fiber brakes, and MW floater axles. Based on 9\" Ford modular dimensions (16\" housing width), the 12\" can be a easy upgrade for cars currently running 9\" modular housing\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThere are many items that can be interchanged to get your specific wheel to wheel width (from 33\" to 36\" and 38\" to 42\") and \/ or 4-link center dimension (18\", 19\", or 21\"): Inner 4 link brackets, outer 4 link brackets, spacers, and end bells. To order, please collect your dimensions (4-link center, wheel-to-wheel, and bolt pattern), then call 1-866-508-6394 or\u003cspan\u003e \u003c\/span\u003econtact us\u003cspan\u003e \u003c\/span\u003eto place your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52663006658925,"sku":"90785","price":22999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/MW12.png?v=1773773005"},{"product_id":"mw-12-modular-aluminum-4-link-rear-end-complete-w-carbon-fiber-brakes","title":"MW 12\" Modular Aluminum 4-link Rear End Complete w\/ Carbon Fiber Brakes","description":"\u003cp\u003eThis is a complete full floater assembly ready to run. Includes Mark Williams 12\" pitch diameter ring and pinion with 40-spline pinion shaft ~ \u003cem\u003e\u003cstrong\u003eCustom gear ratios now available! \u003c\/strong\u003e\u003c\/em\u003e~, ball bearing pinion support, 40-spline forged steel yoke, 40-spline aluminum spool, 1\/4\" thick 4130 steel 4-link brackets, floater spindles, end bells, carbon fiber brakes, and MW floater axles. Based on 9\" Ford modular dimensions (16\" housing width), the 12\" can be a easy upgrade for cars currently running 9\" modular housing\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThere are many items that can be interchanged to get your specific wheel to wheel width (from 33\" to 36\" and 38\" to 42\") and \/ or 4-link center dimension (18\", 19\", or 21\"): Inner 4 link brackets, outer 4 link brackets, spacers, and end bells. To order, please collect your dimensions (4-link center, wheel-to-wheel, and bolt pattern), then call 1-866-508-6394 or\u003cspan\u003e \u003c\/span\u003econtact us\u003cspan\u003e \u003c\/span\u003eto place your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52663006724461,"sku":"90775","price":21999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/90775r_CarbonBrakes_AlumBracket.600_bd587965-a5bd-458c-8edb-37cf9cec86a8.jpg?v=1762128049"},{"product_id":"mw-12-modular-pro-4-link-rear-end-complete-w-steel-brakes","title":"MW 12\" Modular Pro 4-link Rear End Complete w\/ Steel Brakes","description":"\u003cdiv class=\"hidden-xs\"\u003e\n\u003cdiv id=\"product_tabs\"\u003e\n\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv role=\"tabpanel\" class=\"tab-pane active\" id=\"product_info\" itemprop=\"description\"\u003e\n\u003cp\u003eThis is a complete full floater assembly ready to run. Includes Mark Williams 12\" pitch diameter ring and pinion with 40-spline pinion shaft ~\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003eCustom gear ratios now available! \u003c\/strong\u003e\u003c\/em\u003e~, ball bearing pinion support, 40-spline forged steel yoke, computer pickup assembly with two magnets, 40-spline aluminum spool, 1\/4\" thick 4130 steel 4-link brackets, floater spindles, end bells, lightened steel brakes, and MW floater axles. Based on 9\" Ford modular dimensions (16\" housing width), the 12\" can be a easy upgrade for cars currently running 9\" modular housing.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThere are many items that can be interchanged to get your specific wheel to wheel width (from 33\" to 36\" and 38\" to 42\") and \/ or 4-link center dimension (18\", 19\", or 21\"): Inner 4 link brackets, outer 4 link brackets, spacers, and end bells. To order, please collect your dimensions\u003c\/em\u003e(4-link center, wheel-to-wheel, and bolt pattern),\u003cem\u003e\u003cspan\u003e \u003c\/span\u003ethen call 1-866-508-6394 or\u003cspan\u003e \u003c\/span\u003econtact us\u003cspan\u003e \u003c\/span\u003eto place your order.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mark Williams","offers":[{"title":"Default Title","offer_id":52663009837421,"sku":"90780","price":16999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/90780_SteelBrakes_SteelBracket.600.jpg?v=1762128393"},{"product_id":"mw-12-modular-aluminum-4-link-rear-end-complete-w-steel-brakes","title":"MW 12\" Modular Solid Mount Rear End Complete w\/ Steel or Carbon Brakes","description":"\u003cdiv class=\"hidden-xs\"\u003e\n\u003cdiv id=\"product_tabs\"\u003e\n\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv role=\"tabpanel\" class=\"tab-pane active\" id=\"product_info\" itemprop=\"description\"\u003e\n\u003cp\u003eThis is a complete full floater assembly ready to run. Includes Mark Williams 12\" pitch diameter ring and pinion with 40-spline pinion shaft ~ \u003cem\u003e\u003cstrong\u003eCustom gear ratios now available! \u003c\/strong\u003e\u003c\/em\u003e~, ball bearing pinion support, 40-spline pinion coupler, computer pickup assembly with two magnets, 40-spline aluminum spool, floater spindles, end bells, carbon fiber brakes, and MW floater axles. Based on 9\" Ford modular dimensions (16\" housing width), the 12\" requires little or no modifications for changing over cars currently running 9\" modular housing.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThere are many items that can be interchanged to get your specific wheel to wheel width (from 33\" to 36\" and 38\" to 42\"): spacers, end bells, etc. To order, please collect your dimensions (wheel-to-wheel and bolt pattern) then call 1-866-508-6394 or\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.markwilliams.com\/contact-us-c.html\"\u003econtact us\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto place your order.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mark Williams","offers":[{"title":"Steel","offer_id":52663011049837,"sku":"90750","price":16999.0,"currency_code":"USD","in_stock":true},{"title":"Carbon Fiber","offer_id":52663011082605,"sku":"90755","price":20599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/files\/90055.600.jpg?v=1762128669"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6666\/3021\/collections\/MW12.png?v=1773773019","url":"https:\/\/markwilliams.com\/collections\/mark-williams-12-modular.oembed","provider":"Mark Williams Driveline","version":"1.0","type":"link"}