WDH - I think I understand
OK a WDH distributes the hitch weight across three points (theoretically) - Front axle back axle, TT axle as opposed to simply at the hitch point. So for simple math a hitch weight of 900# would ...
Forum Discussion
TheGreatWaz00 wrote:
So for simple math a hitch weight of 900# would DISTRIBUTE that 900# across the 3 axles 300/300/300 in a perfect world.
No. The purpose a a WDH is restore weight that is taken off the front axle by distributing some weight from the rear axle. A smaller amount is put on the TT axles.
For example using your 900 pounds of TW. If you just put the tongue on the ball, this would be the typical weights over nothing hitched:
TV front axle decreases by 300 pounds
TV rear axle increases by 1200 pounds
Net of 900 TW
Many WD systems and tow vehicle manuals recommend 100% front axle weight restoration. If you were to do this with typical vehicles today, these would be your weights compared to unhitched.
TV front axle same as unhitched
TV rear axle increased by 700 pounds
trailer axles increased by 200 pounds
As you can see, the weigh on the rear axle is significantly decreased from just weight carrying as well as front/steer axle weight is restored.
The percentage of TW applied to the trailer axles is typically in the 20% range based on the wheelbases and rear overhangs of full sized pickups and SUVs.
