ok, i have wieght distribution bars i use to pull toy hauler, but just installed air-bags also. when i hook up the toy hauler, do i crank the weight dist. first, then put fill air bags? or other way around? adding air in the bags, then tight the weight distribution. will that make more tightness on the wieght dist. bars? basically, im just not sure of the sequence to hook up/and un hook the toy hauler after adding airbags.

WDB are going to transfer weight to your front tires. Airbags will increase your effective rear springs. You must have been bottoming out with just the WDB? I would put some pressure in the airbags. I'm not sure your trailer weight. I ran 65psi with a 13K gooseneck. I'll guess more like 30psi as your tongue weight should be only 10-15% of trailer weight. Then adjust your WDB.

The airbags are just going to adjust the harshness of your ride so if you bottom, use more air, if you have a harsh ride, use less air.

You could calculate the support from the air bags:

d = diameter of bottom of air bag
((3.14 * ( d/2 )^2 ) * psi ) *2

So, assume 3" airbags at 20 psi
(3.14 * ( 3/2 )^2) * 20 * 2 = 282 lbs

It is linear so at 40lbs you get 565 lbs

When we bought our camper they told me to hitch up the trailer and then crank the tongue jack up and that the pressure to hook up the distribution hitch was considerably lighter. I would think it would be the same with air bags only you wouldn't have to crank the tongue jack.

WDB are going to transfer weight to your front tires. Airbags will increase your effective rear springs. You must have been bottoming out with just the WDB? I would put some pressure in the airbags. I'm not sure your trailer weight. I ran 65psi with a 13K gooseneck. I'll guess more like 30psi as your tongue weight should be only 10-15% of trailer weight. Then adjust your WDB.

The airbags are just going to adjust the harshness of your ride so if you bottom, use more air, if you have a harsh ride, use less air.

You could calculate the support from the air bags:

d = diameter of bottom of air bag
((3.14 * ( d/2 )^2 ) * psi ) *2

So, assume 3" airbags at 20 psi
(3.14 * ( 3/2 )^2) * 20 * 2 = 282 lbs

It is linear so at 40lbs you get 565 lbs im sorry, i failed that math class, but i get what your saying. air in the bags first, then hook up w/d. thanks math teacher.:D

im sorry, i failed that math class, but i get what your saying. air in the bags first, then hook up w/d. thanks math teacher.:D

lol ;) measure the bottom of the air bag and I can tell you how much weight is supported. At the end of the day you just want your load level and your ride comfortable and safe.

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