Guys, I added rear air bags to my F250 to stabilize it when towing my heavy 5th wheel. Last year my truck was stolen and stripped of everything loose inside, including the instructions for the air bags. Can't even remember where I got them. Will some of you tell me what maximum pressure your rear air bags are allowed, and I'll assume mine are reasonably similar.
(Hell, they even got my 4 iron!!)
Thanks
Warren

 

I have a set of Firestone airbags on my 99 PSD. The maximum pressure is 100psi, although i usually have about 25psi in them when towing my 32ft enclosed gooseneck.

 

I have Air Lift bags, 100 psi max and 5 psi min, I air to 60 psi empty, then when I lower my 5er with 3200 lbs of hitch weight the bag pressure increases to 75 psi.

 

I have RideRites on my work truck. Usually i only need 30-40 psi to get the truck level, or just a TAD nose high,which looks appropriate when hauling a big trailer. Today i was pulling the 34' bumper-pull enclosed trailer, the load arrangement required me to put a 3500 pound tractor with loader and mowern up as far is it could go, i put 90 psi in the bags before loading and when i was done loading, estimated 4500ish pounds of tongue weight (yes, ouch) the bags were 105-110 pounds. I have the pressure set at 90/120, so they can never be pressurized static over 110ish pounds. The bags did just fine, they brought the back of the truck up near level, and you could see the bed actually bend down like trucks when they sled pull because of the tongue weight..

As a side note, for each pound of air in the bags (equalized,) it adds about a 40 pound increase in capacity. 50psi would mean 2000 pounds of help, and 100 psi would mean 4000 pounds of help. The overloads haven't touched since the install.