trevorsride,
It's hard to say, because tire manufacturers sell tires at different sizes (usually smaller) than advertised. It's shockingly common for a 31" tire to measure 29-30" inflated. WHY this has been allowed to continue (legally) I have no idea - it's false advertising at it's finest. Basically that translates to: what fits for me, my brand of tires, AND how "fresh" my springs are (some sag more than others) means 31" might fit under mine - but a little rubbing on yours. This can easily and cheaply be fixed by any combination of BFH, properly back-spaced wheels or fender trimming.
I think the BFH & fender trimming methods are under-utilized because people are afraid of it. It's actually quite easy to do in a few hours with simple hand tools. It doesn't take much effort to make a stock / clean looking job. It's cheap, and keeps the center of gravity low. It may not seem like it, but 1-2" in COG can make huge differences in stability in off-camber situations.
tell me the negative about the masterkit1, seemed like a very good deal for a full 5 inch lift but it seems like you dont like it, you have me double thinking my choice, whats your thoughts?
Not a good deal at all. He's selling you Jeff's 2" spacer lift ($200 total w/ tax & shipping), which means the rest of the kit (3" body lift) is $300. RIP OFF - considering you can get it for $100 - $200 anywhere else, or *gasp* make it yourself for chump change. But - body lifts are THE SUCK. They raise the center of gravity, and don't directly offer any additional frame clearance. And, running anything larger than 31" is the suck - unless you're going to take a massive leap in cost & complexity and go to a Solid Axle Swap (search "SAS"). Stock driveline can't handle anything larger than 31" (really, 31" is the max, I usually recommend 29-30" tires, and lockers). Jeff will have a better idea of what brand of tires should fit under your rig with coil spacers. If they do seem to rub you can live with it (it's usually no big deal), fender cut, BFH - or do a 1" body lift if you have to. MUCH MUCH better than 3" body lift. Remember, each 1" of lift gives you 2" of tire
size clearance (since radius of a tire is 1/2 of the diameter of a tire).
You'll hear about people surviving with 33" tires... but... they seem to be the exception, and not the rule.