Using Firestone airbags with WD hitch?
First off, let me say that I have searched through the forums….and I’ve found some good info on this topic, but nothing really concrete. And a lot of the info I found was from way back in the early 2...
Forum Discussion
Durb wrote:
I towed a 6,000# trailer with a 1/2 ton truck. I adjusted the WDH so that the ball was 1" low from unloaded height. I then aired up the bags so the truck raised the 1" back to unloaded height, no more. This was about 20 lbs of air pressure. Admirable tow.
I was following my son and his trailer was all over the place. He had onboard air with dash control. He said he couldn't understand it as his bags were almost on max. We took off a link on his WDH and lowered is bag pressure considerably which improved his tow to good. By raising bag pressure he was unloading his WDH and anti-sway. He also created a hard fulcrum of his rear axle and the trailer weight was unloading his steering axle.
Bags are good when dialed in properly but create problems when over aired.
That's not an airbag problem that's a user error problem.
You have to set your WDH properly with the bags aired up.
If you set the hitch at static no-air height, then add air and change the static height, of course you'll screw up the original setting.
Air the bags, THEN set the bars. Keep adjusting until you find the right balance between the two.
