On my 03 Z71 rcsb I think I can fit 33"s stock, I am just wondering how much is involved in putting 35"s on. Does anyone make a suspension lift smaller than 6"?

rancho makes a 4" I think thats the only way you can fit the 35's

I fit 33"s on my truck with stock suspension and have no problems. There are several 4" suspension lifts out there but, even with this, I'm pretty sure you'll have some rubbing issues up front with 35"s.