Unlike the 722.1 transmission the input shaft on the 722.3 extends out from the casing – to “up end” the transmission on the “bell housing” part you need to support the casing so that the input shaft does not get hurt. I used blocks of wood.
First I removed the output shaft nut. Someone had already had a go at it before I bought the transmission but failed... (Not a good sign)
I used the same method as I did on my 722.118 as I'm still not going to buy a special tool for that!
http://www.peachparts.com/shopforum/2787565-post9.html
I could tell that the bearing in the rear part of the casing was dead.
Once you've got the rear nut off remove the stuff on the outside of the transmission, such as the selector shaft, the “electrics box”, kick down solenoid, vacuum dash pot