had 1 a bit similar back in blighty 47.8tons of grain on 5 axles total gross ooooooooopppppppssssssss 
luckly i didnt have far to go with it to get it on the boat, bloke on the scales at the dock was none to impressed but we got on ok so he let me off 
my little 320hp fl10 didnt think much to it though hahahahaaha
chris