First two years you have to watch out for, the tooling was still screwed up and some of the axles, and I mean the WHOLE axle, was 'bent', DC replaced most of them, by the truckload complete with preinstalled brakes, and hardware, a roll out roll in type of replacement. The TC's also were contaminated with the cutting fluid the milling machines used and they did not flush out completely. Eagle had his bought back which is how he ended up with a new XJ.
Rule of thumb, if the drivetrain makes ANY noise run away...
The axle thing was supposidly that they put the hot castings with tubes on the wrong fixtures to cool, the housings sagged, not alot but enough to eat bearings. Aluminum vs steel thing..