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Re: 1962 10 bolt pinion seal replacement help
I use a big ratchet when I can but if you are really careful you can use an impact gun. Get a measurement on how far down the nut is on the pinion threads and make the scribe mark mentioned earlier. This will ensure that you can put it back where it started in the event that the socket spins faster than you can count. That's two reference points. The back of a dial caliper works good for this but alot of times you need to put a flat edge on the pinion to get an accurate measurement. Most pinion nuts are beveled and you need to find a repeatable surface.
The worst one i ever did was on a 62 one ton HO72. We put a 3/4 breaker bar on it hooked to a tractor. Pulled the truck sideways and broke the breaker bar. It took a borrowed 1" impact and a 60 gallon compressor to finally get that one loose. Normally they are nowhere near this bad.
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