We are putting together a 78 CJ5 with a 350 with turbo 350, a Dana 20 and Dana 44 front axle and a Ford 9 in the rear. We want to have a spring over suspension. Right now the frame is sitting in the garage with the 9 in under it and we are trying to figure out a mount for the passenger side of the Dana. Before we weld anything else to the tubes we would like know the optimum pinion angle (if there is such a thing) for the outputs of the axles. Any suggestions???