I have noticed a small power loss going to 285's. I still have enough power to smoke the back tire, lol. Some suggest re-gearing, but I can't justify the expense of that to offset the small loss in power. Maybe 5-10% loss in the power department.

As far as mpg's, I dropped ~1.5 total. I'm still averaging between 18-21 highway and 14-16 city. Since installing the 285's, my average of all driving has been ~17.25 mpg.


The stock 4.10's. At this point, I have no plans to re-gear.

 

In your last pic, the tire doesn't hit the upper a-arm. You might want to check to make sure it doesn't when the tire is at full droop. My BFG MT rubbed due to the sidewall tread, so I hammered the a-arm in about 1/2 inch.