This is the optional ProLine Inboard Hub Kit for the Front of the Losi XXX-SCT/SCB. FEATURES: Replaces stock front hubs and axles allowing 12mm hex ProLine Pro- Trac offset wheels, and any other 12mm hex zero offset wheels to be used Eliminates front and rear specific wheels Also allows the use of Losi XXX-SCT/SCB rear offset wheels on the front Rubber sealed ball bearings YOU WILL RECEIVE: Two Molded Steering Knuckles Two Molded C-Hubs Four Precision rubber sealed ball bearings Two 12mm Hex Adapters Two Axles Two Shims Two Roll pins Two Axle Nuts Hardware REQUIREMENTS: Removing stock front hubs and axles jxs 08/29/11 ir/jxs &