Quote Originally Posted by 69elko
What is a good internet site that posts all the ID numbers?
H308 sounds like August, 30th 1968, which would sounds right for a 69 model car.

Doesn't look like it answers your question, but this is a nice site of details and where to find all the numbers on the axle: http://www.chevellestuff.com/generic/axlecodes.htm

Stamped production number would be good to get and be easier to identify. Might need to scrape a little more