Could I thank everyone for their responses, this is obviously a difficult decision to make. I already have an estimate for the existing gearbox repair that includes a high cost of removal and replacement but as I said no guarantee. Vitesse Global are keen to make the MX5 gearbox work, they already have a suitable bell housing from the TR6 but want to be sure there's no major work on the chassis. I appreciate it's cost is high but includes new clutch, propshaft and gear stick. Not too sure if I should broadcast it but will do all of the fitting free because it will their first. Welcome any further advise, I'm sure Vitesse Global would also appreciate comments, I have given them Dave Rumens contact details. Regards Roger