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  #1  
Old 05-12-12, 04:39
warren brown warren brown is offline
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I see! So is the stud pattern on a CMP compatible with a GMC or Studebaker. This might sound ridiculously naiive but I'd never thaought of it before...
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Old 05-12-12, 04:49
Bob Carriere Bob Carriere is offline
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Default Clarification.....

Not sure about the stud pattern.... the 8 bolt pattern of the CMP is rather unique.

When they installed duals on a CMP they installed the civilian brake drums, and the two civilian rims which fitted perfectly on the CMP axle spindle...... backing brake plate and brake linings were the same size as the CMP so everything worked fine. The typical civilian duals I have seen on CMPs are either 5 or 6 bolt pattern Budd wheels with 5 circular holes/opening cut out of the rim as seen on 1955 GM 3 to 5 ton trucks.

Bob
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Old 05-12-12, 05:03
Harry Moon Harry Moon is offline
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Quote:
Originally Posted by warren brown View Post
I see! So is the stud pattern on a CMP compatible with a GMC or Studebaker. This might sound ridiculously naiive but I'd never thaought of it before...
The spindle for the brake drum not the studs for the wheel.
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Old 05-12-12, 08:00
lynx42 lynx42 is offline
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Warren, Don't you remember that your Stude US6 had 6 stud wheels and your C60X has 8 studs. The tyres are interchangeable being 7.50 X 20" on the Stude and are the same on the F60S Tippers.( Not the C60X).


No drum or stud changes here in Australia Harry and Bob. The English Bedford and Austin 7.50x20" wheels fit straight on without changing brake drums or anything else allowing duals on the rear and a more centralized to the brake drum, front tyre.

Regards Rick.
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Old 05-12-12, 09:05
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Ganmain Tony Ganmain Tony is offline
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Default Here's one

F60S. Fitted with duals.

Three of the rear wheels look like post war but one looks authentic military.

Obviously I cant verify if it had a tipper body but the tow hooks position may provide a clue.
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File Type: jpg Truck 042.jpg (61.1 KB, 72 views)
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Old 05-12-12, 11:30
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An early 50's pic of the rear of a Tractors Artillery No. 6. Aust. based on a C60S chassis and sporting an extra wheel. Rod
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  #7  
Old 05-12-12, 12:27
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Tony Smith Tony Smith is offline
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Quote:
Originally Posted by lynx42 View Post
Warren, Don't you remember that your Stude US6 had 6 stud wheels and your C60X has 8 studs. The tyres are interchangeable being 7.50 X 20" on the Stude and are the same on the F60S Tippers.( Not the C60X).

Regards Rick.
The Aust Tippers with Duals used 8.25-20 tyres. Most definately 8 stud and used the standard CMP hubs/brakes, etc. Not just a straightforward swap with Bedfrod or Austin wheels, the front hubs has a spacer used because of the excessive offset of the dual wheel rim (as evidenced in Ganmain Tony's pic above without the spacer).

If anyone want to give duals a run for their money, there's a set of six on e-bay at the moment:
http://www.ebay.com.au/itm/Chev-Blit...item1c2e00f804
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Old 05-12-12, 23:21
warren brown warren brown is offline
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Sorry Rick - I'd engaged typing before engaging brain. As soon as I'd sent I realised. (It's 17 years since I had the Stude! Wow!) interesting about the austin/ Bedford swap over. The 1920s Dennis fire engines I have do the same - often they,d replace the big vintage disc wheels with standard Bedford wheels no worries. In fact one of the fire engines has Bedford rear wheels at the moment. Anyway I'll go and have a look at this farmers truck and report back. Warren
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  #9  
Old 07-12-12, 01:11
Mike Cecil Mike Cecil is offline
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Warren

In case the Bailey Bridge sections misled you, the images posted by Rick C are both tippers, just different models. The Aust Army's CMP range of trucks during WW2 had only one series with duals as standard as far as I'm aware: tippers. Post war, some No.6 LAA tractors were so fitted as well, with Units equipped with both single and dual wheel-ed tractors.

Tyre size for tippers with duals was 8.25x20.

The spacers for the front wheels were essential to retain the steering geometry (king pin angle to point on the ground where the centre of the tyre was)

Regards

Mike C
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  #10  
Old 07-12-12, 11:29
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Hanno Spoelstra Hanno Spoelstra is offline
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I got this message plus picture in my mailbox:

Quote:
Hi guys,

I'm a lurker, not a member, but the Softskin forum has a current thread dealing with 'Blitz' dual wheels.

You may be interested in the attached pic, which although it doesn't show it clearly, you can however just make out the dual wheels behind my late father's right leg (esp. the patch of light on the ground between the duals). It also plainly shows the 'Blitz' being used as a prime-mover with semi-trailer attached.

The pic. is of Allan Layton after being demobbed to the Aust Army Service Corp, 3rd Military District General Transport Company shortly after WWII.

regards
Allan Layton (jnr.)
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