Good news! Its fixed! Thanks Greg and others for all the comments. Really appreciate it.
No matter what I tried, I was not able to adjust the shift rod to enable it to cycle thru all the gears.
I removed the shift rod and opened the gear fan case. The issue turned out to be the fan gears being corroded. The pic shows the corrosion but it is hard to see how bad the teeth were.
I was able to get it fixed by replacing the gear fan and then adjusting the shift rod linkage.
This is a walkthru for replacing it. www.youtube.com/watch?v=FABLVRLNHtY
Its now shifting better then it did when I first got it.