Dano78, thanks a ton for the info man! You seem to know your stuff on these trannies. To answer your question, I do not have a clue what the AOD tranny was. The guy just told me he found a rebuilt one but it would be over 500 bucks to have it installed for labor and then 500 for the tranny itself. He said the guy he found it from has a tranny shop or works in one where they rebuild them and that the guy said to bolt up in my 302 that it would take a lot of fabrication work on the carburator, etc. I don't know what he meant by that but he said I would need to make brackets for it, wiring, etc etc so I just said ok that I will pass on it. I don't know anything about trannies so not sure what I am ever getting that is why I held off. Also I am not too sure about getting one from a junk yard not rebuilt. My dad said to probably stay away from that because the last thing I need is a tranny that I have no clue how well it was taken care of no matter the miles on the trip and that I don't have all this money to fix it if it breaks. I may go look and see if I can get a rebuilt one for fairly cheap. I don't want to spend anymore than 600 bucks on a rebuilt tranny and even that is a lot for me but I thought I'd set my price a little higher than 400 like I wanted to spend at first just in case.
Like I may have said before, I want a tranny that will hold around 400 HP, be good for the street and last a long time... I don't need any drag racing or highly modified tranny, etc just a strong and plain built one like anyone else would put in a fast street car or truck. Sorry if I sound like an idiot here but not sure how else to put all that.

Maybe you can answer this question too if you don't mind. Everytime I go to change gears and put the truck in reverse I put the clutch all the way to the floor and go to shift but it want's to grind. I will put the clutch back up and then try again and still wont so what I do is push it forward, until RIGHT when it tries to grind and wait a second and then it will work. It will do it when going to first gear SOMETIMES. Is this a clutch adjustment type of thing or do I need a new clutch or what?
Thanks!