Thanks... good timing, I was just headed to garage to look at it again.
I pulled out the book. It is kind of hard to interpret and it's been too long since I installed the support but I think there is a "grommet sandwich" squeezing the support. And it appears there is a spacer that controls the amount of the squeeze. I read this as the "sandwich" sits below the frame horn as I have it.
Anyone have photos of "known correct"?
I hope it's right because raising it up won't help my fan clearance!
Reading through several older threads, it sounds like this loss of clearance is a common ailment and unfortunately, a PITA to replace the mounts and/or add shims under the frame mount. Especially for those of us that don't own a hoist.
I've got higher priorities for now but I'll try to inspect the mounts and I predict dealing with this is in my future... arrrrghhhh...
Mike