Bezerk RC replacement for the Yokomo BD8. Drivers have been giving great feedback on using the BD7 sized diff in the BD8, helps provide more grip in low to medium grip conditions. To achieve fitting the larger diff and spool, the bulkheads need to be raised by 1mm and the towers need more clearance under them for them to fit. We have also dropped the shocks holes by the same 1mm to retain the standard shock geometry. This kit includes one 3.5mm thick front tower, one 3.5mm thick rear tower and four 1mm shims. Like all Bezerk products they can be customised to suit your needs.