Okay! So I've got the cab and chasis of a '02 Intl 4300 26k GVW. The wheelbase is 254" and the cab to center of axle is about 200". Originally the truck had a 24' box on the back so the frame extends well beyond the rear axle. Note: I'm modeling my truck after ETWMAN & WALTERO with the box behind the cab and then the Switch-N-Go system after that. ETWMAN & WALTERO both have 4' wide boxes behind the cab and then the 14' bed behind that. That setup requires cutting the frame just after the rear axle. NOW: I've got the extra frame there and I could put it to use. MEANING: Instead of a 4' wide box I COULD put a 5' possibly 6' wide box behind the cab. That would be "super awsome" storage capability. ISSUE: That causes the Switch-N-Go system to be pused further back. I am concerned with being able to carry as much weight due to possibly overloading the rear axle while not even reaching GVW. Also just the thought of having the weight that much further back and wondering about effects on handling. Then again, it is just a foot or maybe 2 feet further back. THOUGHT: Truck originally designed with weight back there............hence the 24' box BUT that weight was spread over a 24' distnace. My dump body is 14' and my drop box is 15' so the weight is more contained. This is a logically a potential issue but am I just thinking too much physics? -Gravel Rat.......thoughts?