WW2 GMC 20" 6-stud wheel details

[Matt Austin]

Morning, folks,

After a fascinating conversation with a collector, I've had a bit of a look at the GMC 20" six-stud wheels. I'm wondering if anyone has details of the stud circle diameter of these wheels, please? I'm wondering if a set could be used for a straight swap onto my Inter K5, to get over the 18" tyre problem.

If they could be used to get the truck mobile, I could then start chasing a set of Gama Goat tyres, or save up for the DUKW repros from the States. The gentleman in question showed me Jack Neville's article about his M-H resto, which mentioned a now-deceased bloke in the US who had 8000 Gama Goat tyres. 8000!

Cheers,
Matt

[chris vickery]

I can check mine for you but 1.5t, CcKW and M series 2-1/2t trucks all share the same bolt pattern. DUKW runs fit too but had spacers to clear brake drums with 18" wheels.
Will get back to you

[Phil Waterman]

Hi Matt

Have you check this website cckw.org some of the people are extremely knowledgable on CCKWs and relater trucks and maybe able to help.

Also their forum http://cckw.org/forum/viewforum.php?...628b37d5eef32b

Cheers Phil

[motto]

The pitch diameter of the CCKW wheel stud pattern is 8-3/4"
This is the same as Chev G506 1-1/2 ton (Yankee Joe), DUKW, White Scout Car and M series trucks with 6 stud wheels.
I would be surprised if IH used the same pattern. They tended to do their own thing to a large extent though I'm fairly sure the M-2-4 used the same 16" wheels as the Dodge 3/4 ton WC so you may be lucky.

David

[Matt Austin]

Thank you very much, folks, your assistance is appreciated.

Cheers,
Matt

[Ron King]

What width 18 inch tyres do you require.
I have been looking into this problem for a Wiles cooker.
A Korean tyre company can supply 7.50 x 18 tyres new in Australia with a road type pattern.
If you are interested give me a PM
Ron.