Lugnutz,
yeah I've seen the original ones in 60-66 engine bays at car shows. Which is why I was pretty sure mine was not original. The top mounts/brackets that hold it in place for the one in my truck are the next body style tho', as I bought some rubber pieces for them one time.

a photo of the radiator installed...

The 60-66's I've seen have that center mount/bracket that goes up and over the radiator.

Lakeroadster found a image of a '73-'77, the tanks look the same, but the width seems wider, hence maybe it was custom. I dunno.

details in the link here:

original link - updated with responses


Thanks for the reply!

-Woog