In order to run an automatic without electronics, you need to get one from an '80 up FSJ, AMC Eagle, or YJ and a 23 spline input for your transfercase... You will need to get a harmonic balancer that has the CPS setup on it from someone like Novak or Advanced Adaptors... You will have to call either company, they don't have them listed on the websites, but I know they make them. I was looking into doing this swap a couple months ago in my Renix MJ with a BA10/5...