Plastic Diff Gear for the Jumpshot. Features an updated tooth proflie for lower rolling resistance. Will fit the Jumpshot V1 & V2 when used with the corresponding differental parts. The following gears must also be used together as they have a unique tooth profile: #160039 - DIFF GEAR 60T or #160040 - HD DIFF GEAR 60T #160041 - TOP SHAFT GEAR SET V2 (22T) #160042 - HD IDLER GEAR V2 (27T)