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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jan 2016 Posts: 35 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2016 Posts: 35 | I just had my Muncie 318 3 speed rebuilt and was installing it last night. I had help and they were going to refill with SAE 90 but removed the top bearing retaining plug on the tail-shaft instead of the side fill plug. I snugged it back down but does anyone have guidance on how tight this plug needs to be? Does it just hold the rear bearing from moving? I don't want to drive the truck until I know I won't cause damage.
Thanks
Greg | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | The pin on the end of the plug if for holding the rear bushing support in place. It just needs to be snug.
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