bartamos
You are right.....nothing like doing it yourself.
After I got my measurement, I put the wheel back on & I was able to get measurements of existing clearances with the stock 4.5" wheel with 9/16 offset with a 6.50 16 tire.
Now I can substitute a 16 x 6 wheel with a 4" or 3.75" backspacing with a wider radial tire to compute if it'll all fit & adequate clearance.
Thanks, After thinking about your post I went & did it myself....with better understanding.