Check the listing for details. Arrma 6S Differential Spool- Fits Infraction,Outcast,Limitless -Rear End Locker. Condition: New. Listed at 25.97 USD. WCM Products are made in the USA!!!Now made with 7075! For sale we have a 7075 Billet aluminum locker spool for ARRMA 6S machines. This fits front, rear and center differentials in Felony, Talion, Mojave, Notorious, Typhon, Infraction , Outcast, Limitless and Kraton. This is CNC machined to tight clearances to to keep your machine running hard for a long time to come. We even shaved some weight for you. This fits Differential case ARA310433 / ARAC4006 This also fits the Arrma aluminum case #ara220050 This replaces the center section and clutches thus locking the axles together for zero slip. The auction is for the spool only (the last 4 pictures). Nothing else is included. Check out my other listing for multi item auctions and save some money!