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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jun 2015 Posts: 59 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2015 Posts: 59 | Those mount holes go all the way through the crank, they are not blind holes. They should be installed with some kind of sealant after cleaning the bolts and the holes if not you could get an oil leak, the oil could wick up the bolt threads. Like Jerry said blue loctite will work it will also seal the threads from leaking oil.
1962 GMC 920 step side 261 4 spd
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