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Joined: Apr 2022
Posts: 2
Rust Offline OP
Hi Guys, first post but been lurking for a couple years now!

Sorry to ask another wheel question, but there seems to be so much floating around

As I understand, starting in 55’, the one ton trucks have a larger diameter rear drum - 12”F & 15”R. With this, the 16” wheel diameter options (dexstar, wheel vintiques, ford e350, etc…) don’t work because of clearance issue over rear drums.

Working to confirm, but seems like the 19.5 commercial wheels (rickson/P30), OEM multi piece or OEM 17.5 single wheels are the only real options.

My truck has the 3 piece wheels. I am planning to buy new rubber for them and keep my eyes open for a single piece 17.5 set.

Am I missing an option for my truck?

Joined: Nov 2005
Posts: 6,079
3B Offline
Hy Rust, welcome, years ago I built a single rear wheel 52 one ton, the truck had the larger 14" rear brake drums (which continued up to 59) I was able to use Furd Econoline wheels 16", not only did they clear the rear brake drums, but they also cleared the tie rod ends. I fitted the wheels with 235/85 tires, they gave the truck the proper stance, hope that helps.

Joined: Apr 2022
Posts: 2
Rust Offline OP
Thanks, you are right, 14” rear.

I ordered a Dexstar AM20766 to test fit front and rear. I will reply here once they come in and I test them out.

Joined: Jul 2018
Posts: 201
Rustbucket Ranch
The 19.5 wheels on a P30 would most likely be duals, and some of those have the 5/10 lug pattern.

1949 Chevy 3100 (In the family since new)
1955 Chevy 3100 (Dad's truck)
1955 Chevy 6500 (Possible parts truck?)
1958 Chevy 3800 w/ 9 foot bed (Current project)
1959 Chevy Spartan 10400
Joined: May 2005
Posts: 9,189
Dual 19.5 wheels are common on a P-30, and so are the 5/10 lug....
However in earlier years GM made some single wheel step vans and other vehicles that ended up with 19.5" 8 lug single wheels.
They are a little hard to find now, but well worth finding if you can. Using an 8R19.5 tire keeps the original tall and skinny look of a 1 ton, about 32-33" tall. I have some on my truck and like them a lot.

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-

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