I've been trying to track down a slow drip from my t-case ever since I did the clutch job back in the summer. I was kind of pissed, thinking it was the seal that separates the cases of the t-case itself, but last night I washed the t-case down and let it dry, then I went for a long drive and looked for the source...turns out it's not a seal at all, it's the stupid bolts around the output shaft casting...I guess I should have put some sealant on them as I was re-assembling after changing the shaft oil seal....(sigh)....learn from my mistakes I guess, always seal those bolts.