Either the air-ride is screwing up the wd-hitch, the wd-hitch isn't set up properly or both.
I have this style of WD-Hitch CURT Manufacturing - CURT TruTrack Trunnion Bar Weight Distribution System #17500
I am pulling with a 2006 Lexus GX470. Somewhere around a 6500 lb towing cap. I am pulling a 3700# trailer and have 500 lbs in passengers and another 560-800 in fuel & gear depending on where I'm going and for how long.
It is my understanding that when I put the trunnion bars on, they should be levering some weight onto the front of the vehicle, however when I drop the hitch onto the car, I can see that no weight is being transitioned. Worse, is that the leveling suspension raises the back of the vehicle so that if there was any weight being pushed forward, it is all on the back axle.
I am not sure how to fix this. I can disable the air ride but I am not sure how to get it so that it is at the same PSI/ride height every time.
I cannot raise up the back end of the bars, they are positioned as high against the trailer frame as the frame/system will allow.
The dealer sold/installed this, said that it was good & proper however that does not appear at all to be the case.
Should I trash the bags and replace them with springs? The shocks are near gone and need to be replaced anyways.