Osceola

I know we’re talking about suspension improvements. My 2015 Yukon SLT has max towing package. My veh could use. Little more lift when towing my Lakota bumper pull LQ horse trailer. I do use a Reese heavy duty weight distribution kit with round bars. The air shock OEM compressor seems to go on a lot when under tow. Is this normal? I thought about installing Firestone air bags to rear coil springs for a more stable ride. I know I don’t have Adaptive Air ride like the newer GM Yukons. But will these air bags help and can they be installed in this 2015 Yukon?