for the transfer case. I have some 2x2 3/16 square tubing, would that be ok to use? Or should I use round tubing and if so what size should I use? I also have 1/4 plate for the mount for the transfer case and some angel Iron to attach to the fame rails. basically what I want to know is there any disadvantages using rectangular tubing vs. round tubing? I'm going to be clocking the transfer case up a few degrees and build an skid plate. I was going to clock it up between the frame rails but I'm going to wait awhile till I can afford HAD drive shaft.