27 coupe wire wheels

[wbs]

hello-1. how do I tell if my wire wheels are original or modelA wheels?
2. I notice one of the wheels seems to be shifted slightly up on the hub and I think the domes on the lug nuts seem to be smaller than the other 3 wheels. Does this mean that wheels should actually ride on the domes of the nuts and not on the hub bolts? thanks

 

[van Dyck]

T wheels have a 5" bolt circle, A wheels are 5 1/2".

 

[duckwing]

Check this page

http://www.mtfca.com/discus/messages/118802/137012.html

Scroll down to photos that show a simple way to ID T vs A wheels.

 

[Steve Jelf]

There's a difference you can see without measuring hole patterns. On Model T wheels area between the holes is flat. On Model A and later wire wheels there are ribs pressed in between the holes.

 

[t42]

Glad to see my original post again. All the above is correct.
The "T" hub does have the 5-inch bolt circle and the diameter of the hub is 9 inches.
The "A" hub has a 5-1/2 inch bolt circle and a diameter of 10-1/12 inches with raised reinforcing ridges between the bolt holes. There are two styles of "A"/"AR" 21" wire wheels. They are not interchangeable due to different brake drums. The "T" wheels for '26/'27 are the same with a very few (rare) examples having the larger hubcap opening.

 

[wbs]

thanks to all-I learned a great deal-my hub looks a little different than the one shown in Snyder's catalog(and has some extra stud holes)-where some other make of car hubs used on 27 modeT's and re-drilled for studs to accept a model t wire wheel?

 

[Steve Jelf]

I found better pictures showing the difference between T wheels and A wheels.