Originally Posted by RACarvalho
Thanks need-a-vacation !
Do you have the link for the studies that changed the mindset on this?
As for the studies, I don't have any links. If I recall right, one of the things that was mentioned was by having more weight on the front axle than when unhooked (no trailer) that it would cause oversteer which could cause a very serious situation when towing. By having equal weight, or less on the front axle when all hooked up, ready to roll down the road it will be easier to control the rig in an emergency situation by having a neutral or understeer set up... As I mentioned, if I recall correctly! Lol I had read about this somewhere on RV.Net while surfing numerous threads.
As mentioned, up to about 2" of squat is fine. More than that you either need to re-adjust the wd bars via the hitch head angle, or you don't have enough truck for that particular trailer.
I don't recall seeing how to weigh the rig combo at a CAT Scale posted here (maybe missed it!). You will want to weight a total of three times. You will want to be loaded, ready for a trip with all passenger (that will normally be going) in the tv.
A CAT Scale has three scale pads. Pull the tv up far enough that the steer (front) axle is only on pad 1, drive (rear) axle is only on pad 2, and the tt axles are only on pad 3.
1: Truck and trailer, with wd bars latched up, ready to roll down the road.
2: Truck and trailer, with wd bars unlatched. Set the wd bars in the bed of the truck.
3: Truck only. Leave the hitch in, and wd bars in the bed.
With these three weights, you will know if the hitch is adjusted properly. If your within all the specs of your tv (don't forget the truck receiver hitch rating!), and what your total trailer weight is and the loaded tongue weight.
1-3= total trailer weight
3- (fa+ra of 2)= loaded tongue weight
Depending on what your tv owners manual states for a wdh set up, the #1 faw should be somewhere between #2 faw and the #3 faw. Example- #1 faw= 3200, #2 faw= 2900, #3 faw= 3500. This example the wdh has returned 50% of the lost weight (600lbs lost weight when trailer is hooked up, but without the wd bars latched up).