front grill swapping

[p7387]

hello:
are the front grills interchangable on all chevy/gmc from 73-87?
for example if i get a 87 truck can i use a 77 grill?
thank you

[Blazin]

73-74, 75-80, 81 -87 are the grill interchangeable years. The head light doors / trim go from 73-78, then 79-80 are the same unless they have the square head lights, the lower grill trim is also different on 79-80s.