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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: Mar 2014 Posts: 4,480 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,480 | While it was out I would see if anyone near you could machine the block to accept a one-piece rear main seal. Also, I would buy a harmonic balancer repair sleeve and install it. Even if you center that seal perfectly and polish the balancer sleeve nicely, it can still leak. One other thing...if you're handy with metal working (1/8 inch aluminum will do) make a bar for the lower side of the pushrod cover so it will seal better.
Good luck,
Jon
~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
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