Pinion Seal

[doctorgski]

I believe I may have a leak starting in my final drive. I have read past messages and I looked on the gadget page microfiche's for a part #. What part is it that usually is the problem. I had a drip of oil, smells like rear end oil, from under the left side cover at about the kick stand. I had changed the rear oil in Illinois about two weeks ago, no problems until we did a 100 mile ride out here in the mountains of Colorado. Not much of a drip but after taking off the side cover I found about a teaspoon. What is strange; under the boot I did not find much... Also not much when the acorn nuts were loose. Could this be just a altitude thing with the increase in pressure. What do you think?