There is nothing cheap about an axle swap. 8.8 is a decent axle but the pinion is a bit low, like a 9" and it hangs a bit low for a 33" or smaller tire.
675 isn't bad at all, when you consider the cost of locating the axle yourself, buying a bracket kit, and paying to have it installed.Jeeeezis 675 just for rear? Then need front one also plus labor?!!!
Im pretty sure u can find them in mustangs and rangers also but I'm not positive