Hey guys I need some help deciding on a tire size. My truck is a '14, 5.0, 4x4 with 3.55s. I'm adding Raptor wheels and looking at 285/75r17 and 285/70r17. My stock tires are 275/65r18, 32.1" tall and weigh about 51lbs each. The 285/75 are 33.9" tall and 63lbs each. The 285/70 are 32.8" tall and 57lbs each. I want a bigger tire but I don't want to loose a lot of power or mpg. I also don't want to regear my truck (did that with my '05 5.4 with 315s). Will the 285/75 be a big difference in power and mpg? I'm afraid the 285/70 isn't going to look much different than what I have now. Any experience or info would be appreciated. Thanks.

 

I'm running 285 75 17 on my 05 with the 5.4l and 3.55 gears .It looks good and power loss is noticeable but not that bad.My motor is stock no air intake no exhaust, no programmer, nothing with 78000 on the od.My suspension is the pro comp leveling struts up front. I get minimum rub on the driver side inside plastic inner fender with trail master wheels and Nitto trail grappler tires.