Mark Williams Differential Main Caps - Steel - Black Oxide - GM 12 Bolt 011280 13-1/2 x 9-1/8 x 1-3/4

13-1/2 x 9-1/8 x 1-3/4 in

Gear Case Rack

Cross Pin GM 7

LS6 & L99 factory intakes

perfect for karting

Mark Williams Differential Main Caps - Steel - Black Oxide - GM 12 Bolt 011280 13-1/2 x 9-1/8 x 1-3/4One 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. Differential Main Caps Hardware Included Steel Black Oxide GM 12 Bolt Mark Williams Enterprises manufactures a full