Where to buy bags

Where can I find some very large bags. I am build a tow truck and I need some bags that will hold some weight. The truck will be pulling a 3 car, car hauler.

i have some for sale in the classifeds came off an 18 wheeler made for alot of weight

If your talking about a r12 they won't work very good.
Grip

the big ones i am selling worked good with alot of weight but unloaded they did suck

http://www.stengelbros.com/Airbag_interface/Air_spring.asp



Rolling lobe bags are not meant to be ajustable.Six inches is the average from compressed to max on a r 12.

thank you very informative good info is the best kind

I wish I learned it from the site instead of a fourteen thousand pound truck that rides six inches off the ground.
Grip

Are the Firestone 2800lbs bags the same as the Slam Specialties RE-8?