i've never done them. i imagine it was take quite a bit of time mostly. you're talking putting a hole or two in your bed and getting the right bends in the pipe. i'd also find someone who can weld without it looking like ass too. i'd take welds over clamps anyday. although you might have the advantage of not having a transfer case and front drive shaft to work around. if i were doing it, i'd run the pipes without welding or clamping, mark where you need the holes, cut em out and then run everything. make the holes big enough that the exhaust wont rattle around.