85 K5 mounts have to move? 70s clip issues

[73kay]

Hey all, I have seen a few people on the web had to move their core support mounts an inch or so to install a 70s front clip on an 80s square. I did the swap on a 76 c10 frame and clip with a 86 cab and had no issues.

But I am doing the same thing on my 85 blazer and that mount looks like it has move. This makes no sense any help or suggestions?

I do not want to move the mount but am tinkering with adding more metal to it and having an elongated hole or whatever to work. Just looking for feedback. This stinks.