I had the Belltech 3/4 kit on my '02 and loved it. The ride was pretty smooth really and I got a great deal on it - but they've come wayy up in price since then. I got the cheaper kit without the spindles and had no problems and the ride was great. Truck sat pretty much level.
Pics:

and a side shot to show the stance:

 

yea i had/have the 3/4 belltech with springs hangers and shackles.. that part of the kit is good.. the shocks that come with it... are garbage...

 

I have the Belltech 2-3/4 kit, and stuck with 2/4 that way it's level and I like it so far. illness95, what shocks did you get? I have Street Performance.

 

Mine came with those miserable nitro drop shocks.... given if i didnt give up on the drop suspension i would have done stock bilstiens with shock extenders on the rear...