[cericd]

These are my best guesses at the numbers

Driver’s Side

Cover –
(first line) GM 8 3952645
(second line) J. (6or8) 9

Tail Shaft –
I 229

Passenger’s Side

Body –
(first line) GM 36
(second line) (3or8)925(6or8)47
(third line) J. 8 9

Tail Shaft –
52 GM (3or8)8(0or6)042