I have read conflicting info throughout facebook and google. What all is required to use a 78 grille on an 80s D150. Thanks

 

A 78 grill....


Not sure about the core support but I don't think so.
valance panel
headlamps
grill surround and grill park lamps

 

Of course, anything is possible but I think ya gotta be pretty slick to pull it off.

 

My core support, and valance are good so I could use them, i know it's been done, i just don't know how. The info I have read says mostly you can either change the core support, or you have to change the front clip. These are the conflicts.

 

You don't need to change the fenders!
but I would use the 78 hood.