I just put duals on my truck " Rocky " from MC set it up for me. In the process we had to lengthen the front drive line and shorten the rear. Rocky's suggestion was to use the CV from my front shaft on the rear and not put one up front so basically swap shafts and cut / lengthen to fit. He explained why in great detail but a short version would be angles. I set it up the way he reccomended at it works great
John
