bag sizes needed

I got 2b7s on my dually now and they work well while in tow. Have also had the contitech 3600s on my 97 and they did pretty good.

Think 2b7s will hold much?

I don't know the pressure/height specs on them exactly but they will hold quite a load I would say.

well looks like lockone answered that question said he tows so there is my answer woo hoo wias worried for a bit

Towed a 2000 Durango behind a dually with the 2b7s on it and they held up real good. I was running around 145 psi in them and they raised the truck and trailer to a respectable tow height.

yea you thing those would hold up to a 40 ft open 2 place trailer tow behind?

They might being that it is a tow behind trailer, but you might want to step up to a bigger bag just to be sure because you are hauling 2 cars.

I'm personally running airlifts 1r-9 rolling lobe sleeve bag for towing a gooseneck enclosed trailer. The bags support 4460lbs at a 100psi. Currently my ride height is 22psi in the rear. Should be under 40 with the trailer. I have it setup just in front of the axle generates around 11 inches of lift.

Just my .02

hmm things to ponder

Yea if you are hauling a 40' trailer i would hope it is a gooseneck.