R&P Install- 1st hiccup-pinion nut issues
OK, I am starting my R&P install in my 1978 D-30 NT. They are new Yukon gears (4.10:1) with a Yukon gear master install kit. I made my set up bearings and trial assembled the pinion gear into the case.
The problem is that when I go to snug the pinion nut down (using the same thickness shim stacks (+.0005" to comp. for new bearings), the nut threads on 2 or 3 turns and then get tough to turn, eventually getting extremely hard to turn. It is to the point it feels wrong. I used a little oil on the threads, and pulled it off/out once to check things. The nut threads looked shiny, but not x-threaded. The pinion nut threads look ok (no burrs that I could see), and match the old pinion gear, but the old nut will not thread onto the new pinion gear easily (I am saving the new pinion nut for final assembly). I stopped there so I don't end up messing some expensive stuff up.
Is the pinion nut a self-locking nut? Even if it were, it is much harder to turn than other self-locking nuts I have used.
Anyone have any thoughts on this?
1948 CJ3A, In the process of a full rebuild.