My 340 in my 66 developed issues :-(

One more problem to deal with.., I was told when I bought the car it had a 727 trans, so I purchased a 2500 stall for a 727. Fast forward...
I dropped my trans off to have it built the other day...well the guy at the shop calls me this morning and tells me what it's going to cost and By the way Kevin, it is not a 727 it's a 904!!

So now I just got done running around returning the stall I bought and reordering one for the 904..

Any of you guys have feedback on the 904 you wouldn't mind sharing? I've done a little reading on it and it sounds like a good transmission but the 727 is a little stronger. I really hope it will hold up...