OK, I know the codes for M20, M21, M22 (A, B, C) were not supposed to start until around late October 1968, at least on Chevy cars. But could Pontiac and Olds have started sooner?
I have a Muncie that I think is from an early 1968 Firebird. The date code is P8B07c with a partial VIN of 28L100919. I found pictures of two other transmissions with a similar small "c" stamp after the date code. All stampings look very simillar. I wonder if someone is trying to fool people that these are M22s or what is going on? These are all from different parts of the US. The trans I have was in an IMCA modified stock car, converted to a 2 speed with M20 gears in it. So it was not fooling anyone there. I have gears to put it back to being a 4 speed M20. I have never seen any of these small "c" marks on a Chevy transmission. Does anybody have any ideas?
I have attached a picture. This is from Muncie #2. I have pictures of the two others but can't post now due to size limits. I can send them to anyone interested that would like to comment.
Muncie 1 - the trans I have - date code P8B07c with a partial VIN of 28L100919
Muncie 2 - an Olds 442 trans? - date code P8C06c with partial VIN of 38Z117242
Muncie 3 - a Pontiac trans (GTO ?) - date code is P8A19c with partial VIN of 28P244597
Any help you can provide to explain this will be appreciated.