Yet another update.....
I've found, by using my dial test indicator, that the face of the front hub is distorted 105 thou
so no wonder I have braking issues!
I've also looked closely at the bearing (supposedly new) that was returned to me.
1) It has suffered catastrophic failure, burning a hole in one of the two inner tracks. This hole has cracked the inner race of the bearing and burnt a hole at the edge where the dust seal is.
2) The bearing most certainly isn't new. I'd bet it was the original one all along. There is too much rust along the outer edge for it to be straight out of the box.
3) The hub is a bit of substantial metal and I think it has been distorted when the old bearing was pushed out.
Personally I think I have been completely stuffed. My own supposition now is that it was the bearing all along that caused the stiffness in the transmission, and the garage claimed it was the gearbox just to get the work.
Naturally I cant prove a thing, but back to the wheel bearing garage tomorrow!
John