85 cab and front clip on a 79 frame

[Dave1965]

I am currently putting a 85 cab and front clip on a 79 frame, my question is, are the core support locations the same on both the 85 and the 79 frames and if so can I use the 79 bushing for the 85 core support? If I use the 79 bushings on the 85 core support the gap between the door and the fender is narrow at the bottom, like the core support needs to be lifted up. Are the bushings for the 85 core support thicker? I am using poly bushings by DayStar. The cab lined up and mounted fine using the 79 bushings. I also noticed that the body line on the front fenders go down, not sure if they are supposed to go straight with the rest of the body line. Any help is appreciated.