My 2015 3735MK has a GVWR of #16640 and axle is 7K per the placard on the side and it came with Trailer King ST E tires and it did not come home with those lame tires on this big rig so I had them transfer my Geostar LT G574's off my old 3402RL on to the new one NOW I'm good to go BUT I am MAXED out (a little over)
for my 2003 dually but Ole "Black Bart" can handle it