1957 large crank damper bolt size

[twstnshout]

What is the size and thread for the large crank damper bolt?

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[biddle]

This is your fourth and final reminder. When you post to our site, use a title/subject that summarizes your post along with the 4-digit model year. If you use "1957" as your subject, nobody has a clue what your post is about. I will revise your subject one last time.

 

[cokefirst]

9/16 18 X 1 1/2"

 

[swatson999]

Bolt - Damper to Crank - 1 Per car-classictbird.com

www.classictbird.com

(Specs are in the Parts Catalog, as well).