Mark Williams Hardware Included Differential Main Caps Steel Black Oxide GM 12 Bolt – Each

One of the most common causes of rear end component failure can be traced to the stock rear end caps. To cure this problem MW makes a replacement cap from billet steel with an increased cross section and heat treated grade 8 hardware (included). Requires precision measuring of the cap bore and milling of cap parting line to install.

Mark Williams Enterprises manufactures a full range of racing axles, spools, rear end housings, steel, aluminum or carbon fiber driveshafts and disc brake kits. M-W also makes an assortment of chassis and driveline components.

Mark Williams Enterprises manufactures a full range of racing axles, spools, rear end housings, steel, aluminum or carbon fiber driveshafts and disc brake kits. M-W also makes an assortment of chassis and driveline components at its Denver-area facility.

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