When I replace Radius arm bushings I do one side at a time. Jack up front of truck and place 2 stands under frame rails near bumper, use floor jack and remove one tire, with tire off take out bolt holding shock to radius arm,remove top coil retainer,now lower axle end until coil has pressure off it, loosen bottom coil cup bolts( if can't get with wrench use socket,long extension and ratchet thru top of coil),spin coil out (if stuck tap coil with hammer to loosen grip of crud),remove coil cup, jack up axle till level, now take off radius arm nut, now attach come along to end of axle housing and other to end of frame and pull arm from frame mount ,replace bushing ,loosen cable while guideing into mount, install second bushing and tighten to hold bushing in place but not tite yet.Now remove c- bushing bolts and again pull axle forward to remove c-bushing,clean rust and scale and reinstall bushing,loosen cable so axle goes back into position,if not back enough take cable from frame attaching point and attach end to radius arm frame mount and pull axle back and install remaining c-bushing and install bolts just slightly loose(you can also use longer bolts to pull halves together and change them out when close enough). Install cups,coil,jack up axle install retaining clip( sometimes it is easier to put a longer bolt in the top retainer bolt hole and on the outside hole a long punch is used to pull the holes even and if they won't stay take a vise-grip to keep them so you can install bolt),shock, bolt tire on and go to other side.When done with both sides go back and tighten all bolts to spec.Keep come-along handy incase you need to pull body into position when changing trac bar bushings to get frame bolt into hole.
