Suspension/Chassis Suggestions - 70 Dart Swinger

as far as rear end options, I would figure out what offset works best for what you want in the front, and figure out what rear end width you need to support it without spacers. measure your existing rear end width and how much clearance with your existing tires to the inner and outer sides of the wheel and go from there if you are looking to do the same size and offset rims front and rear. I have a spreadsheet I developed in excel to calculate what different rear end widths and offsets work with my duster's measurements....

depending on HP level you decide to go with, Jeep XJ's came with 3.55 geared 8.25's and are 60.5" wide (3.375" wider than my stock 7.25" measured). IIRC liberties are more like 62" wide but come with rear disc brakes on an 8.25. ford explorers are 59.675", rangers 58.5" and come in a wide variety of axle ratios and an 8.8" ring gear axle. SN95 mustangs (thru '04) IIRC are in the same width range as the XJ's and also come with 8.8's....at least around here, 66-70 B body axles are not easy to find anymore....