THIS IS A COPY / PASTE of Keith's info located
here.
There are two different styles of chrome hood letters. The 1967- 1969 style is smaller and has small ribs which run horizontally through each letter. The later style doesn't have the ribs and has a satin-like finish inside each letter. The '67-'69 style is pressed onto clips in the hood, whereas the '70-'72 style is held onto the hood with nuts from the backside.
In this photo, the '67-'69 style is on bottom and the '70-'72 version is shown on top.
Because of the difference in size and mounting pin location, they are not interchangeable.
All that said, 67 will be fine on a 69 and it's lettering.
Across the board, the only real difference from the exterior is the lettering. My 69 has a 70 to 72 hood, which I hope to swap for a 67 to 72 later, just for the lettering (or I can just repair and redrill).......... Either way, it's a minor difference and not applicable in his year model truck to donor.
Frank
Darlin 69 Ranger 390 4v, PS, DS II, disc front, 3G alternator, 67 mirror.