Screwed up my 12 bolt

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crazy4offroad

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Curt
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1979
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K-10
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350/SM465/NP205
Good, as long as you were able to get 0.005" - 0.015" backlash, good mesh pattern power and coast, and a little turning resistance on the pinion (24 in/lbs rotational torque is hard to gauge without an in/lb torque wrench) it should be fine. Be sure to change the gear oil after 500 miles and if you plan any long trips in that break-in period pull over after 100 miles or so and check that the diff isn't getting too hot. If it overheats it will push the oil out of the overflow.
 

1low4x4

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Nick
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1984
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5.7
I have an inch pound torque wrench but didn't use it. I just tightened to feel by spinning it by hand. I got about 0.012 backlash. didn't even use the paint cause we never did when I was growing up building racecars with stepdad.

The 500 mile oil change will be a good reason to install a big aluminum diff cover
 

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