not exactly the axel yes can just be straight swapped under but there are so many things to do to the axel its un real. as for suspension components youll need to find a set of springs. Frame tubes, bushings, shakels, spring hanger, hi steer, hydro assist (highly recomend with big tires), drive shaft mods. thoes are just the basics search around the site a bit and see some of the sas's in progress and finished and see what all it entales. yes you can buy complete swap kits. but if you have decent fab skills you can build your own for way cheaper.
PS if you decide to buy stay away from TG (trail gear)