CAT scale FACTS from
THIS POSTTruck only total wt. 4420
Truck with trailer hooked up w/o WDH engaged - Truck total - 4840, trailer axles total - 3980
Resulting in a Tongue wt = 420 currently all as cargo on TV axles
Truck with trailer hooked up and WDH engaged - Truck total 4760, trailer axles total - 4060
Tongue wt. still 420, but only 340 of the 420 tongue wt. is now cargo on truck with the other 80 lbs as increased load on trailer axles.
=> with WDH engaged 80/420 = 19% of TW is carried by the TT axles and is not counted as cargo on the tow vehicle.
Larry