It's probably the rotational inertia of those big ass 37's, you may actually be wearing out the bearings more at high speed on the highway than at 3 mph on the trail...Ever read those negative threads about costing money to run 37s? Why do they always have to be right?? Ughh :doh:
Have noticed a difference in the handling the last couple of weeks. Not sure how to describe it, but it's a little twitchy. Then came some rubbing noise in the rear. I used some google-fu on the WF forum and deduced that it might be a rear flange issue.
So, last night was my regular 5k oil change/tire rotation, I went ahead and put the Jeep up on stands to check the runout on the rear axle. Sure enough as soon as I put it in drive I could hear the back, then I look and they're having trouble even just rotating. I didn't measure with a dial but could see about an 1/8th" wobble when I held a pencil up to it.
So looks like I'll be ordering some axle shafts today, believe I've decided on these: Revolution Axle, 07-15 Jeep JK, Rubicon US Made Rear Axle Kit, 32 Spine
I knew this day was coming when the wife decided on 37s instead of the 35s I'd planned. BUT, we really haven't wheeled that hard, so I'm a little surprised.
Anywho, wish me luck. Hopefully they'll be in by the end of next week.