I wanna run 33's with room for 35's in the future. Would Chevy springs along with some shackles be enough?
With what you posted. I think the front would need addressing more then the rear for 35's. I clear 33's with just my 1" solid blocks(stock rear springs) in back. I do have minor rubbing in the front(full turn). I can't really say in inches per say on my front lift, as I got them from a junkyard....maybe 3".
As for the 63" springs. From what I have read...get more flex,some lift, and "dirt cheap"(used ones). And that is the reason behind the 63's.
Mike