Did Ford use a specific hood emblem to indicate the truck had a overdrive unit installed. I thought I remembered when they had a round gear with a lightening bolt through it it meant it had a overdrive. Anybody know for sure? Thanks for your help.
Don

 

No hood emblem on 67-72. The lightning bolt was used on all 61-64 and 65-66 with 6-cyl engines.

 

Thanks...Don