87 doors on a 79 cab

[77scottsdale1]

I have a friend that has 87 doors that I want. Will they fit and what are the differences between the doors?

 

[1987 GMC Jimmy]

The door shells were the same from 77-91. The paneling, inserts, door handles, etc. were different from 77-80 so you’ll need to swap over all your ‘87 adornments.