Hey guys, I just got some 33x12.5R15 BFGoodrich KO2s on Level 8 Trackers and a TF Leveling Kit. Discount Tire aired them to 35psi and it seems a little rough, but I don't really want to kill MPGs. Can I go much lower without dropping MPGs? Otherwise I am pretty pumped with the look and feel! A lot of thanks to the forum for helping me make the decision that made the most sense for me!
Couple pounds can make a big difference. I have 295/70 17" Mickey Thompson ATZ's on my JKU. If they are at or above 35psi the ride gets bouncy and rough. I run them at 32psi and that gives a nice ride.
My wife's Rubicon with 285/70 17" Nitto Ridge Grapplers at 35psi feel cushy by contrast. We put the TF leveling coils on hers too.
Did you take the stickers off the center caps on those trackers?
Yeah I did. In hindsight I would take them off a little more carefully and spray painted them black and put them back on. I didn't realize there was going to be that small hole under them. I do like the all black look though.
I run my 35/12.5R15 KO2s on 8" wide rims at 28 PSI, and even that seems a little high - after a little over 40,000 km they're definitely wearing faster in the middle than the edges (cupping?) which to me indicates that they're still over-inflated. You'll want to consider tread life vs mileage when you're deciding what pressure to run: What's the point of gaining .5 mpg if you're going to take10% off of the life of your tires?