without going back through the thread i'll assume you can weld. to use the explorer axle (and only need to buy custom shafts) all you do is work out the required measurements, cut the tubes and swap left to right. so a longer piece from the long side welds to the short side and vice versa. to get the straight for welding cut them roughly centre of the straight section of tube then clamp the parts between 2 sections of thick 2" angle iron. they can't be out of line so you can weld the bits in between the angle, remove the angle and weld the rest. work from one side of the tube to the other in shortish welds to keep heat distortion even. i've done several rear ends this way after being told about it by a steel fabricator/engineer friend.