Ford FE engine timing chain cover. Believed to be correct for 1970 thru 1975 Ford FE 352, 360, 390, 406, 410, 427 and 428 engines though you should confirm first.  

Date code appears to be April 1968. 

I HAVE MANY OTHER THUNDERBIRD PARTS FROM THIS CAR AND SEVERAL OTHER YEARS SO IF YOU NEED SOMETHING JUST ASK.

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