I checked the bolts on the diff and tried to tighten them (from the PS

). The one near the rear tightened about 1/4 turn. The other were very tight and I didn't apply any more torque. That might do it!
I'm gonna wash it off, then top off the fluid. I'll see if it continues to leak. I just had the fluid changed in my diffs this spring. Man I feel like an idiot because it looks so simple to do myself.