I have a 69 base car without posi 10 bolt it has this number on the axle PA 101032 and this one where the date is 71 ontop of J29 THANKS!!

PA is a 3.08 non posi rear. I bet the numbers are actually PA 1010 G2.

PA = 3.08 non posi
1010 = Oct 10th
G2 = Detroit Gear and Axle- 2nd shift


J 2 9 is Oct 2, 1969 casting date.