Primarily used for the Thirdmenber caps and covers for 12" Modular and 12 Bolt Modular, this slide hammer tool with a 5/16" thread can be adapted to other thread sizes. This handy tool can also be used to take caps off of rear ends that have 5/16" locking bolt size. The M/W Aluminum Thirdmenber Cases have alignment bushing that centers the caps. This tool remove then easily with out damage. LIMITED STOCK