I am going to begin removing the tranny tomorrow morning. I have decided not to crack open the replacement and just install it as is. I am sure it'll be fine, at least for a while. I am guessing it'll take most of a day to get the old one out. I have heard about the crossmember being a challenge to get out and I appreciate the advice.
The replacement tranny had been outside for a little while, possibly months. Do I just install it as is and then flush it and replace the filter and fluid? What is the best way to go? I don't wanna blow a used transmission because I didn't service it properly.