Hello,
Looking for help identifying my two transmissions. My intent is to sell them or use them as trading stock since I have a 1972 1800E with BW35, I cannot use them. One is a M40 part no. 254349 (hard to make out 4th digit, so guessing) with housing #380100 (EKAT K2). The other is a M41 part no. 254409 with housing #380100 (F33M K4) and has the "D" type over drive unit. I do not want to mislead the individual interested in my two transmissions so I would like to be informed as much as possible. My questions are below:

1) Which Volvo models/years can use them?
2) Where can I find details about of these two transmissions for my general knowledge?

https://ibb.co/kwTs2J
https://ibb.co/f2UzhJ
https://ibb.co/gmgZGd
https://ibb.co/dJEMwd

Thank You, Angelo