Originally Posted by
Kitchen Devil
There's all sorts of ratios mate depending on what engine was fitted to what vehicle.
Best thing I would think to do would be to have a look at the ratios in the workshop manuals and things and see what suits your needs best.
I personally think you won't go far wrong with a box out of a 2.0i sierra or Granada tbh mate.
the only part of the 2.0 sierra/granada box thats any good for a 24v cosworth conversion is the rear section, unless your swapping all the internals over to the hybrid box, which is pointless, the bellhousings can't be changed to fit the 24v as they don't unbolt