NV 246 transfer case seal leak?

[sleepy hollow]

I have a 2007 Laramie with about 82K. It has the NV246 GM transfer case. Whlie changing the fluid in the case, I noticed that there appears to be evidence of a "spray" of oil radiating from the rear of the case where the rear drive shaft is inserted into the transfer case. I have never seen any evidence of fluids on my driveway nor has there been any significant leak of fluid. The fluid I changed looked brand new, though it has been awhile since it was changed (40k? miles).

So, is this something of significant concern? I am assuming some fluid is getting past the rear (ouput?) seal.

Should I change this seal immediately, or eventually? If so is it hard to do? Can it be done by one person under the truck? Seems like it should not be too tough. But I welcome the opportunity to learn from others with experience.

Thanks for any thoughts/advice.

 

[KGBIGCOUNTRY]

Its prob weeping like most of them do. Its just enough to get everything a small coating and some dirt on it.

 

[sleepy hollow]

Thanks. I kind of was leaning toward just keeping an eye on it. It is really minimal. Looks like about a thimble full of fluid has slipped out a couple years. Hardly worth replacing a seal over I would say.