Sas on a 2wd frame is pretty easy. On axles you have a couple choices. But it depends if you want to run the same wheels. A jeep dana 30 front swap can be done, and has been done, this will keep your current lug pattern the same, but is a weaker axle than the stock ford dana 35 front axle. Dana 44 from a wagoneer, early bronco or full size truck or bronco. All have been used under rangers. If you want to stay ranger width, waggy (6 lug) or EB axles (big 5 lug) are your choices. Full width would be big 5 lug. Rear axle choices are an explorer 8.8 for stock width, small 5 lug ranger pattern. Big 5 lug pattern ranger width would be a narrowed 8.8 from a full size, or EB 9". Full width is 9" or 8.8" from a full size truck. It all depends on what you plan to do with this truck, how big of a tire you plan to go (max you think you would go, even down the road), and how hard core you want to get...
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