Originally Posted by Alaskan_TA
Pounding it flat would be quite ignorant when it was intended to be this way.



Barry, The picture you've shown is NOT OE for 1970 I assure you.
its missing the washer, and the rubber insulator bushing. The nut is supposed to go on the other way thus swedged into the washer to keep it locked in place

[Linked Image]


My money is on the OP has the wrong Z bar , or at the very least is installed backwards , if thats possible