Fender headlight buckets (welded in) are unique to each year.

Steel Wheels had 10 holes in 66, most 67's had 6

Steering wheels were unique to each year

Dash Clusters were unique to each year

Console tachs were unique to each year

Hub Caps/Wheels covers were unique to each year

Tires were unique to each year


................Heck it's A LOT easier listing what was the same as opposed to what's different!