I have what I believe to be a 1968 Olds Cutlass rear end. The part number cast into the carrier is 3959038.Axle Tube codes DH 123M.Can any one tell me what the orig car was? Model/year Thank you for your time. [img]images/icons/wink.gif" border="0[/img]

here is a link for olds diffs you might find your answer there <A HREF="http://my.en.com/~thall/olds/ofdif.htm#Differentials" TARGET=_blank>http://my.en.com/~thall/olds/ofdif.htm#Differentials</A>