So...still doing it. 4 years later
. When I said "still vibes 55-58, nothing she can't deal with", that wasn't accurate. I don't blame her. It's annoying as heck to drive.
My wife uses her ZJ as a weekend bike hauler and the main highway it is driven on is speed limit 55. So it's right there in the speed range where it's most prevalent.
Recently installed a 231 case to rule out the hack n tap crap on the 242. I rebuilt it and added an Advance Adapters HD SYE kit. Had Oliver's make me a new front shaft (interchangeable with rear BTW). Test drove it, still has the same freaking vibration.
Not the transfer case. Not the driveshafts (been through 3 of them). Not pinion angle front or rear (I've adjusted them multiple times w/o any tangable change).
I'm beginning to wonder if it's something to do with the Spartan? I've had the rear diff back apart to verify bearings, setup and backlash and it's dead nuts good to go. I'm just not convinced it has anythiig to do with the locker as I have NEVER seen that happen before.
It feels like you're on smaller rumblestrips where you can see the rear view mirror vibrating. There is a general sense of roughness from 45 or so MPH and faster. Once you hit 55ish, it's bad.
I really am at a loss with it.
What say yinz?
