Looking for the R/A codes for a 70 Z . My protecto Plate shows COZ 0414G does this make sense ?

COZ = 3:73 Ratio which was standard in the Z-28 4 speed. (Not sure about M-40/Turbo-400). Optional was COO 4:10

0414 = 4th Month, 14th Day

G = Detroit Gear & Axle (Mfg of Differential) Should either be a 1 or 2 after the G to designate shift

Line/Area below COZ0414 G should have an E for Eaton Positraction, which was mandatory option with Z-28.

Thanks alot Chuck ! The line area below says 113 but I see no E. I have yet to find the code on the axle, it should be 3 " to the curb side of the banjo not ?

This is what mine looks like...

http://my1970z28.com/pics/etc/body/16_May_023.jpg

Thanks a ton FLajunkie ! I will see if I can find it with some elbow grease !