OK everyone, with new lower ball joints and fairly new uppers .I just reinstalled a 2' AS on top of a Fabtech 6". Had a 2.5" but took it off when I changed the uppers.

2.5" was very stiff and with a very rough ride.
Now with the 2", for a 1/2" difference,the ride is much better. Still stiff , But much much better.
So for those of you considering an extra lift ,go with a 2"

Next on the list is 1.5" aal

I`ll post some pic`s later this week. I do have some pic`s in my gallery when I had on the 2.5" .

(Truck is a 2 wheel drive)