I just started the regearing process on my dana 30. I want to try and get a good starting point on my shim stack thickness but I am not sure what I am reading on the old and new pinions as far as adjustments.
On the new pinion the only numbers are '64' which is indicating that it matches the '64' ring. There is no adjustment or deviation from the 2.250 standard. Should I just assume that it is 2.250?
On the old pinion I just can't figure out what they were trying to write. It looks like an '80' but I suspect it should be '+0'. The bottom number '900' is the matching ring number.
Here is a picture. The left is the old. The new one on the right has a hard to see '64' at the top and no other numbers. Any thoughts?