[PeteVS]

I put an aftermarket ring and pinion in a '48 rear. Only problem I had and I found out afterwards is that the two bearings on the pinion go on differently. The first should be, and it was, a nice press fit. The second, and it wasn't, is supposed to be a very close slip fit. The problem manifested itself in trying to set the preload. Because the second bearing was a press, it would "jump" small amounts as I was pressing it. First, there'd be very little preload, press a bit more, the bearing would jump a couple of thousandths and then, there'd be too much preload. I finally go it good but it would have been nicer if I had just taken a wee bit off of the "outer" end of the pinion shaft.