Originally Posted by marcua56
are they 33X12.50?
WHAT!???!@!?!?? Tire width doesn't matter.
IMO...get yourself a 4.10 axle instead of getting new gears and getting them installed. You'd spend about $200 for a junkyard axle and you'd maybe be upgrading to an 8.8" rear end compared to a smaller weaker 7.5" rear.....plus you might be getting a limited slip if you're open right now. IF you decided to get 4.11 Yukons, it'd run you about $200-250 for just the gears and approx $200-500 for install. Add alot more if you are 4x4. I'm assuming you're a 2wd. In my opinion, 4.56 is too low of a ratio for 33's and the 3.0L...unless you plan on upgrading to a larger size down the road. BUT i will also say, a lower ratio = better in city mpg and funner to drive...but rpms are pretty high when on the freeway, resulting in more fuel consumption.