Ckeck out what Benzmac had to say in this thread:

http://www.peachparts.com/shopforum/showthread.php?threadid=15043

I believe it applies primarily to front wheel bearings and I'm at a loss for why a reasonably talented person would need a dial gauge to come up with what's suggested in the thread. I say this because too many have done it without a dial gauge.

My 2 cents.