.........?????? maybe give it a go with the shims at the front ??? or tailshaft balance again ?? there used to be a bloke (real good) had a couple done by him years ago, but he's the other side of the bay - Seaford, if he's even still around maybe even do a ring around to a couple other tailshaft places just to give em a quick quiz in regards to the angles of dif and box alignment ??