Any good ways to ID an M-22 trans without pulling the side cover?Also where and how do I decode the year of it on the case?I am going to look at it tommorrow night and would like to know what to look for.local guy has it and says he will let me have it for 400.00,Said he bought it 14 yrs ago for his 68 camaro and never did the swap.seems like a good deal no mater which one it is.Thanks-Harvey