Hewland Dg300 gearbox. Specially built for off road rough terrain racing. Specially commissioned steel casing. New ZF 9.31 Ex brabham crownwheel and pinion. All new bearings. No problems whatsoever. Currently running on 450 bhp chevy V8 small block. Lets Talk!!! ŁOffers! PLEASE NO MORE TIMEWASTERS, this is not a toy. If genuinely interested a phonecall to back up any email contact would be appreciated!