Deaver u748 + airbags

I've searched but couldn't find info, is there a different bottom bracket set up for firestone air bag kit so can be used with Deaver springs? or just bolt on the bottom bracket with longer bolts?

The bottom brackets can't reach the axle tube and not sure if that's critical.

kinda looks like this (with much less gap, I found this picture on this forum)

 

I had that set of bags on my truck with U748s when I first lifted it. The bottom of the bracket does not ride on the axle housing. Firestone states that it's totally fine if it doesn't sit on the housing. My issue was that there wasn't much room left for compression with the bags in there (I had Daystar cradles) and it affected how my shocks were working. You might be able to ditch that puck spacer under your bags when you put the Deavers in. They're quite a bit thicker than your OEM pack, even with what looks like an AAL in there.

 

I had mine like this and that bracket bent with a heavy load.
I bought the RoughCountry bags which are centered over the leaf (more toward the tire). I am in process of installing them.

 

What in the hell were you carrying??? I've towed my travel trailer all over the western US with those bags, which put me well over payload "capacity". I've beat the shit out of the things on trails, including some small jumps that were pretty harsh on the landings. Partially why I removed the bags and went with hydro bumps... My brackets were still perfectly straight when I removed them. But, I didn't have that big ass spacer under the bags. Just the Daystar cradles.

 

I was carrying ~14000 lb of load in a pinch, ~30 min ride.

Anyway, I recommend fabricating an extension to that bracket, or get the Rough Country airbags that are more centered over the leaf springs, and add cradles.