Hello Harry,

This setup really has two parts, air height control and gas shock. The air portion of the shock that Firestone added controls height control. It has the ability of lifting the front end up 2 inches under heavy loads. The Bilstien shock portion operates like Bilstien normal gas shock.

So why did I do this ? I wanted truck level when empty but be able to return it to stock when fully loaded. Going with air lift in the front, when loaded, I drop the air pressure to 10 PSI and back to stock height which when loaded the truck is level. When empty I do 80 PSI and its level.

Yes, having upgraded to Bilstien alone would have been enough, however I started fixating on it sitting level and just could not drop it. I am kind crazy that way

I have Bilstien all the way around and love them, the stock shocks very bad (its like having nothing at all) and really enjoy a more firmer ride. However with 19.5 tires, the firmness went up .....

Hope that helps.

Cheers.

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