7.25 pinion seal replacement questions can't get the pinion nut off

I was taught by an old time mechanic to line the marks you make back up to exactly where they were. He was one of those old guys, that if he told you a Piss ant could pull a wagon.....you might as well hitch the little feller up! I never had a problem afterwards by doing it the way you have done. He told me twice to clean the pinion surface where the seal rides really good and to clean the pocket the seal sits in equally as well. I'll do the next one that comes along the same as always.

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