Oh, hehe. My bad. Geuss I should of read your SIG

How much do you think you need to raise the back? And would that be before or after the 1.5 key in the front?

 

Well I really don't need to raise the rear I guess. My main concern is fitting the largest tire I can on there. I do a LOT of offroading, so it's not for show. And since I can't afford a lift right now, every few inches helps. By the way, what is the largest tire I'd be able to run with another 1-1/2 in the front. And what's the max out back.

 

You need to be careful, you have a 1/2 ton Yukon, which may or may not have the suspension leveling system. If you start moving the front end hight you may end up with problems such as the rear trying to raise high to level but maxing out. If you have the autoride with leveling you'll need to do some research into lifting it.

 

So I think I'm gonna go ahead and get a set of Ford keys. I'm running 285/70/16's right now, or 75's I don't remember. But they're just under 33 tall. If I get 1-1/2" of lift, can I go up to a little bigger? Or am I maxed out?