I just checked some numbers on a trans that the 69 Chevelle I bought has.
It has 10W400834. If someone has the car this is for let me know.
Here's a pic.
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Rick
69 Chevelle SS396 Silver L78 M21 Post Sedan (Berger Chev.)
69 Chevelle SS396 Black L78 4-speed 4.10 Post Sedan
Don't text and drive.
Somebody's life may depend on it!