Transmission went out on my 93 3.9 2wd dodge Dakota automatic it has over drive but I’m getting a used transmission off marketplace and I was wondering if I have to get my new trans flashed the vin or something i
of that sort in order for it to work properly

 

On a 93? Nope. Just swap it out, and hook everything back up, and it'll work. (assuming the replacement trans is good.)