New to the Suburban world. Just picked up a 2004 2wd 1500. Would like to level it to accommodate 285/70/17 tires. Before I purchase a leveling kit I wanted to see if just cranking the stock keys 1" would allow for this size tire on the front? I assume this size would fit fine with no lifting in the rear? The truck has 100k on it and the torsion adjusting bolts are quite rusty. Is there a good potential here for these bolts to snap and approx how many turns to get about an inch higher in the front? Thanks in advance.