I just spoke with Oldhiker on the phone.

He thinks his front differential is blown. He's really bummed out. He definitely needs to be in Arizona this weekend, he's just not sure weather or not the truck will be fixed in time to get back to California to meet us. He said if it is, he's still in!
He also stated the KenP had jinxed him by saying he'd be the first one to run Paragon, Moab, and the Rubicon
Hopefully he can get it all straightened out in time for the trail.