KKPIT ACTIVE DIFFERENTIAL LSD Kit Spare Gear Set for Differential - For YD Series and RD Series Gearboxes Spare Gear Set for Active Differential x 1 This product is a repair part for the assembly set that changes the gear differential unit to LSD specifications. *Please note that the LSD kit is not included. This is a hot topic in the RC drift scene. *This is a brand new, unopened item. Please refrain from bidding if you are concerned about the condition. *Please note that we cannot answer questions regarding installation, as the installation instructions are based on online information. *Please note that the sale may end early as it is also sold elsewhere. KKPIT original sponsor stickers are currently being given away with the purchase of KKPIT products over 15,000 yen. Available while supplies last.