I am sure it's a 2010 model. He's not wanting to make it look like a 4x4. He's just looking for some tough wheels to put on the truck and worried about diameter vs. width vs. offset.
I am sure it's a 2010 model. He's not wanting to make it look like a 4x4. He's just looking for some tough wheels to put on the truck and worried about diameter vs. width vs. offset.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Like Luke said, as long as it isn't an 11+ the bolt pattern should be 8x6.5. Most 18" XD wheels are going to be 9" wide. It doesn't sound like the guy wants to stuff the biggest tires possible underneath it, but more just have the truck look good. In that case, I'd do a ~33" tire like a 285/65/18 Nitto Terra Grappler.
2001 GMC Sierra SL ECSB - Project
2012 Honda Civic Si - DD
2009 GMC Sierra SLT ECSB - Sold