straight8pontiac Posted March 16, 2022 Share Posted March 16, 2022 Hello everyone... I am planning to reinstall the lever action (knee action) shock absorbers on the front of my 1937 Pontiac. These shocks are fastened directly to the cross member of the frame.The original bolts, which I thought of using again, are 1/2" diameter and Fine thread. Having no strength marks on the bolt head, what grade of bolt is this considered to be so that a proper torque can be achieved? Can I use the originals or should I be looking at new? Looking for your advice and comment. Thanks... Dave Link to comment Share on other sites More sharing options...
mobileparts Posted March 16, 2022 Share Posted March 16, 2022 (edited) Regular bolts / No marks are " Grade Five (5) " Heavy Duty bolts with the strength marks are " Grade Eight (8) " Someone should chime in as to what you are recommended to utilize..... Edited March 16, 2022 by mobileparts (see edit history) Link to comment Share on other sites More sharing options...
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