I bought these several years ago before I new they would not fit on my '75 with '75 exhaust.
The PO cleaned and painted and semi-repaired them, but must not have known that a mounting tab was missing off of each one. I did not know either. I would add the tab, but I am not positive about the location.
If you have a '74 or older car with OEM HE, you can locate the missing tab and add it.
$17 covers Paypal and shipping.
Clark
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