[Mr70]

PIC05C:
P=Muncie Plant
I=is actually a 1 for 1971
C=Month,March
05=Day assembled 5th.
C=M-22 transmission

G1052E:
CB should be in front of the letter "G".This would be typical.
CB=4:10 Posi
G=Assembly plant,Detroit Gear & Axle
105=Day assembled,105th day is roughly April 15th.
2=Shift
E=Eaton Posi