Bob, the different hand hole count has no functional difference, must just be the different wheels they used to start with.

I don't think many folks will even notice the tube type to tubeless swap, the only visual clue being the dropped center rims you now have. Some will notice the larger center.
For those that are curious, here are two pictures of what Scott has recreated, The somewhat hard to find 56-59 Chevy tubeless 1.5 ton wheels:
http://rides.webshots.com/photo/2817686820080251109pQiKpl
http://rides.webshots.com/photo/2317319550080251109EeoORc

Now I wonder if the original centers could be cut at some diameter between the hand holes and the bolt pattern, and then grafted into the new tubeless wheels, making for a somewhat seamless transition?
They most likely started with wheels like these, but probably a little narrower? http://rides.webshots.com/photo/2512049150080251109usPlaQ

I'm also curious how wide the new rims are, 6.75", 7.5", or?
Also, did you use 9R22.5 tires, or a different size?

Thanks,
Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-