I believe David is right, that the latch and catch is different from 67 to 68, but either will work just fine if you can get all the mechanisms/hardware for it.

I'd still like to add one to mine just for the kool factor some day!

I Have a friend in Victoria, Karl with a white 69 Drop top, and his son Brandon has a 69 H.O. Coupe... I think one of them had the fold down... then I know a few in the BC area with them... but only on may have it in a 67? Ken Reimer?

Good luck, and I hope it works out for you!

Brett - 67 Drop Top 455!