What are everyone's output shaft angles? If I put an angle finder on my transfer case output shaft seal, I get -4.1 degrees which seems excessive to me? The diff is +0.2 degrees. I have no vibrations but I keep getting a drip from the transfer case seal even after replacing it twice.

 

I do not know about the angles, but is the slip yoke in good shape? Pitting or worn? Also check tail shaft bushing for wear, wiggle the slip yoke up, down, and side to side.