shaydog24,
FWIW you might want to ask around/consider how many pieces make up the sub frame. I checked around before I ended up only cranking my TB's and adding H2 rims with 315's and was told that if the sub frame is more than one piece you can have (not always) problems with the bolts coming loose on the mutli piece sub frames. You will want to confirm this but as I recall the Rancho is the only true 1 piece sub frame and I think it was the Fabtech 6" that has the least number of pieces of the non-one piece units.
I may have mentioned this to you before, but when I was where you are now, trying to decide

what to do, I decided to use a progressive approach. I cranked my TB's and put on the H2's with 315's. If that didn't satisfy me I was going to re-sell the H2's (because back spacing was wrong for my next choice) and I was going to do the 4" Rancho with correct BS rims that I would choose if I had to go that way. Fortunately, the cranked TB's and H2's with 315's were exactly what I hoped for so I didn't proceed any further.
I said all that to say, the progressive approach really helped me to get off dead center because I wasn't getting anywhere but wanted a better look/stance than stock. The new Avalanche front look definitely looks a lot better lifted IMNTBHO!
The 4" Rancho looks real good too and so does the any 6" but the 6" is a bit higher than I was willing to go! LOL!!
2DAMAX
