I would say that's totally possible. Is the console tach a factory installed piece, or an aftermarket or dealer installed item?
I also wonder if 68-9 are different for some reason. Seems that 67's always have some different applications than their later counterparts. I believe the first year vehicles are more rushed into market, and certainly in the case of 67's, they use more than a few carryover parts from earlier cars, that are then replaced with better engineering as time allows thru the year. Great case in point is the idler arm situation for 67's. Just my onservation, as I have 2 67's!!
