My truck(Chevy Z-71 K1500) had a 2" squat with the 5er hitched. I installed Firestone RideRite air ride. I towed it to test the set-up. I started at 20 PSI and worked my way up to 60 PSI. After this, the truck sat 1/2" higher at the rear with a level, loaded trailer.
The ride was better than it did without the air bags; and also rides better without the trailer attached(at 15 PSI).
"It is What it is."
2006 Chevy Silverado Z-71, 4X4, 5.3L, 3:42, 100% Amsoil Lubricated
2005 Jayco Talon ZX24-E Toy Hauler
Prodigy P2 Brake Control
15K Putnam XDR Class V
10K Equal-i-zer WD Hitch
Firestone Ride Rite Air Bags
2005 Kawasaki KLR650
2009 Doodlebug Mini Bike