Sam
to my knowledge the 67/68 rad support was a little lower in overall height
If you notice the 69/72 hoods all sat high wear as the 67/68 were sorta nosed/shaved from the factory.
(and imho looked alot better lol)
As far as using the ENTIRE clip,I believe it will bolt straight up.
Take some measurements to be sure,but I believe that the hood and door lines are the same.
I,m sure if i,m wrong the tribal elders will correct me,post haste.
Regards