Haven't yanked it yet. I am 100% positive this is the problem.
Called the builder. He actually confessed that he had put USED gears in this diff with a new posi unit, bearings, etc. He wasn't a bit surprised of the failure and told me the new gears will be on order this week.
I am a bit surprised. This guy is a good friend of mine and we swap work out for each other all the time. It really gets under my skin a bit, but that is just the way it is. I noticed some unusual free play in it once I got the axle in the car and tires mouted, etc. I called and asked him to come check it while it was up on jacks months and months ago. He told me that was normal and never stopped over to look. I thought I was just being paranoid.
Oh well, Radrambler knows this guy too because that is where he got his 9" from.
You know what is funny? He did the set up on my 69 Vette in 2001. I did not realize he didn't replace the posi unit as part of our agreement. It didn't take long that car was jumping and clicking and grabbing when going around sharp corners. Yanked it out, took it to him and got it replaced the way it should have been in the beginning with a heavy duty unit that now works like a champ.
Hmmmm, I guess the second time is the charm.
At least the prices are good.
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