Thanks for all that info - I should had been more specific. It's an S model w/auto tranny.

I am used to dana 30's and Chrysler 8.25's, just have to remove cover and use the rtv, no provision of draining.

Didn't realize the drain plug needed rtv and a new gasket. My parts guy provided with an exploded view of one rear axle, no illustration of diff cover or bottom of housing.

I noticed the oem fill plug did have grey rtv all around it, unlike my dana 30, just tighten and forget. I'll definitely need to use rtv with the new drain plug gasket for the C200 rear?

I really appreciate the time you took to provide both specs. I'll hit another Nissan dealer and get the parts you spec'd.

Thank you for all the time it must of taken to compile that info. It certainly is much appreciated.

Michael