I replaced the rear diff seal.
Noticed it was leaking a month ago when I drove it to work because I had to haul something home.
Not ready to tear the axle apart, but she needs it. Lots of slop in the pinion itself, the yoke was sloppy loose when I pulled the driveshaft. I just put in the new seal and tightened it to the point there wasn't hardly any slop in the yoke.
She'll get rebuilt in the spring, truck's going to wear a plow and other than that be hardly used this winter.
Seal had turned itself into a 2-piece.
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