Originally Posted by sbafarm
..Now, according to your chart in the tech tips, the later trucks (post 53) have stud-piloted wheels with a 7.25 lug circle ( same as mine) but a 5.25 center hole. My original question is can later model wheels with the correct lug circle and the 5.25 center be used on my truck with the correct stud-pilot lugnuts without any center hole spacer-- the lugs should center the wheel. Reason-- seems that the later wheel dimensions are more common i.e. the P30 19.5 wheels.

No, The later trucks and all trucks with that 10 lug on 7.25" bolt circle have hub piloted wheels.
Here's the tech tip again: http://www.stovebolt.com/techtips/wheels/ chart is about half way down.

The confusion may be that when Chevy (starting in 56) and GMC used a large 6 lug bolt pattern they are stud piloted true Budd wheels.

the P30 wheels and the 56-59 Chevy 1.5 ton 22.5" tubeless wheels with the same bolt pattern are hub piloted with a 5.25" center hole.

You'll need the bushings/adapters to use the larger center hole wheels on your older truck.
Countersinking newer wheels to imitate stud centered wheels is not at all a good idea, there is not enough thickness in the wheel center to do it safely on these steel wheels.

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-