When you're parked down hill the oil would run to the front of the diff so it would show a bad pin seal.
If it happened with the new yoke maybe the yoke is slightly smaller on the gh surface
1995 Jeep gc ltd, 2005 Jeep gc ltd , 71 Dart, 73 RR 440-6pk, 78 Mag GT, 85 Power Ram W-350, 92 Daytona, 99 Dakota, 08 Ram 2500
Less than 8 is like playing with half a deck
Long Island Motorsports Association