Leaf springs to air bags?

[Cummins12Club]

Wondering if anyone has ran an air bag set up in the front and rear on one of our trucks, I'd like to eliminate the antique leaf springs and go w a 4 link set up front and rear and run air bags I'm not sure if anyone has done this in the front on a 4wd w leafs

 

[samiam4]

I think those kits which do rears as 1/2 ton springs with assist to bring total rating up to 1 Ton are cool.
I'm 2WD and always though of installing a Gen III a-arms and spindles etc to get decent braking too.

Michael