How to find out what transmission i have.

i know the transmissions i have on my two integras are different for several reasons but id like to figure out what ones they are just for reference. No such thing as too much learning :stuck_out_tongue:
any help would be nice.
FYI the “code” on the one cars transmission is A1-1051143 and the other cars starts with S1-, which lead me to believe the one is an S1 trans and maybe the other one is a Y1 but not sure.

Actually, the one that says S1 is an S1 transmission, and the one that says A1 is an A1 transmission.

Have a look here:

thanks alot…never heard of an A1 but i figured that it was as basic as that…i noticed a difference in gear ratio and what not…