posted 20 March, 2007 19:00
10, 12 and 14 bolt refers to rear ends.
the 8.x is the ring gear diameter size.
5, 6, 8 lugs refer to rim/ wheel holes.

http://www.drivetrain.com/GMtrkratio_posidata.html
http://www.wilcap.com/diff.html
http://www.mag-hytec.com/differential%20covers.htm
http://www.nastyz28.com/decode.html

hope this helps


Jim & Caroline
The highway is for gamblers, better use your good sense."
Gooday-that's my 1¢ answer due to the lousy economy ~ cause I ain't got - no . mo . doe

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