64 2 Speed Auto to 3 on the tree

[keeks69]

I have to 2 speed in my 64 right now i want to put the tree on the tree in for a more fun driving experience without making the middle of the bench uncomfortable. I live in the country and would like some suggestions on a transmission that would work on the tree but have closer to an O/D gear so its not screaming going down the road. But still want to b able to peel the tires in first. let me know please!! your help is awesome thanks and also the procedures to do so would be sweet!