Here is a picture of the wheels and tires as advertised.  I decided on 16.9x34 because they offer the largest foot print in the classes i will be pulling in and should work well with my gearing and rpm.  and of course the old hard and sharp tread.

Here is the first step with the tires removed and the center out.  boy were those tires on there!!

With the center out i can cut out the 9 holes and insert my custom 6 hole center disk.  I had 6 hole center made by my machinist friend and the 9 holes removed at a machine shop so it would be centered and clean.  friends machine didnt  have a big enough throat/ swing 

Center disk  tacked in.

Checking trueness?  and depth of rim on tractor.  UC's have a reputation for being very wide so im going as narrow as possible.  about two inches clearence between tire and brake housing.  I have measured the width at the wheels with tires fully mounted at 92 inches.  my brothers wc is 89 inches so not to shabby i thought.

Before the wheel center goes back on the rim i have to repair the holes cut where the center was removed.

Since I was cleaning the final drive up and installing new seals, i laid it over and mounted the center then installed the rim to final depth and spun it checking to see how true it was before i made it solid.  apparently i didnt get a pic mounted.

In my haste to get them done, i didnt snap a picture of welding the centers to the rim.

Picture after sandblasting and painting black.

Pictures on the tractor to come very soon i hope.  I have the rims on and tires mounted but would like to get tractor outside for a good picture.   Will share more tractor details then.

ok i found this picture i had of the tires and rims mounted but im a little embarrassed by all the junk laying around lol.  still a work in progress.  all the bolts and alignment dowel are not it, i still had to pull the left final at this time.