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  #1  
Old 03-04-19, 18:38
Bob Carriere Bob Carriere is offline
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Default Answer to David Herbert.

Regarding the 6 stud wheels used by the HUP and now I learn also by the Dodge axles of RHD drive Canadian made trucks.

There are some slight differences wed have observed..... the six stud wheels MUST have a different taper than a regular CMP 8 bolts version......as the 900x16 tires do slip down easier than the 5 degree C15a rims.

The six stud wheels/rims I have seen all have the Kelsey-Hayes stamping which includes the date of manufacturing.

It also seems from comparing GM parts listing that the early first 200 Lynx Mk I also shared the six stud brake drum on the front axle.

Comments????
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  #2  
Old 03-04-19, 18:40
Bob Carriere Bob Carriere is offline
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Default Tony has the answers......

Thanks Tony for clearly highlighting the differences of the six bolt rim.
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  #3  
Old 03-04-19, 18:51
Bob Carriere Bob Carriere is offline
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Default following up on Hanno's pictures and Philippe question....

The famous Australian rim was therefore an 18 inch rim of similar concept/design made by stamping two halves in 1/4 inch steel plate.
Do we know who made them??? and probably sourced in Australia. Were they stamped by the maker like the Kelsey-Hayse rims.

Second question.... concerning the origin of the brake drum posted last in Hanno's posting........... I have a similar picture taken from the wrecks of North Africa...... attached...... from the picture I have concluded that it is a Chevrolet chassis from the cleanly sand blasted sheet metal, indentation on the frame for locating a LHD steering box and the spring layout. The fender seems to indicate an earlier version of LRDG using a 38-39 or 1940 round fender model.......

Does any one have a larger picture depicting that same vehicle but in larger format showing the cab style. So far I have not been able to find any references in GM part manuals for that elusive riveted brake drum and I have many.......

Thanks

Bob C.
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File Type: jpg 1939 10 bolt Hub.jpg (68.3 KB, 7 views)
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  #4  
Old 04-04-19, 02:23
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Default rims

Quote:
Originally Posted by Bob Carriere View Post
The famous Australian rim was therefore an 18 inch rim of similar concept/design made by stamping two halves in 1/4 inch steel plate.
Do we know who made them??? and probably sourced in Australia. Were they stamped by the maker like the Kelsey-Hayse rims.

Bob C.
The manufacture of the Chev 18" split rims is mentioned in the GMH 'War Record' book. My understanding is, GMH made the rims themselves , GMH had a huge press for the job . Don't know where Ford Australia got theirs from . Anybody know ?
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  #5  
Old 04-04-19, 03:40
Bob Carriere Bob Carriere is offline
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Default Thanks everyone....

GM did make the wheel stamping initially but was later taken over by Kelsey-Hayse.......

In view of the link of the six bolt rim to the 8 cwt, I am surprised they were used on the early Lynx armored vehicle...... unless they had more than one version of the six bolt brake drum / rim ....... or it explains why they went for the standard 8 bolt set up later in production.

Bob C.
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  #6  
Old 04-04-19, 10:27
David Herbert David Herbert is offline
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Remember guys that the six bolt 16" rim was used on 8cwt trucks that had 9.25 - 16 tires not 9.00 - 16 (although I am not so sure about Lynx I ). 9.25 - 16 are lower profile and rather lighter construction than WD 9.00 - 16. They have not been available for a very long time. I don't think that there were any British WD vehicles that used 9.25 - 16 on the heavy style split rims so it is quite possible that they didn't fit. The main British user were the Humber 4x4 range and they had their own much lighter design of split rim with five studs.

David
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  #7  
Old 04-04-19, 10:37
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Hanno Spoelstra Hanno Spoelstra is offline
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Quote:
Originally Posted by Bob Carriere View Post
In view of the link of the six bolt rim to the 8 cwt, I am surprised they were used on the early Lynx armored vehicle...... unless they had more than one version of the six bolt brake drum / rim ....... or it explains why they went for the standard 8 bolt set up later in production.
... it explains why they went for the 8-bolt 15-cwt split rim later in production!

H.
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  #8  
Old 04-04-19, 13:54
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Quote:
Originally Posted by Bob Carriere View Post
GM did make the wheel stamping initially but was later taken over by Kelsey-Hayes.......
GM Canada made them for Chevrolet vehicles, while Kelsey Hayes made them for Ford Canada and Dodge Canada. English WD wheels for Morris, Bedford and Austin are made by Dunlop.
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  #9  
Old 05-04-19, 03:09
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Default Sankey

Quote:
Originally Posted by Tony Smith View Post
GM Canada made them for Chevrolet vehicles, while Kelsey Hayes made them for Ford Canada and Dodge Canada. English WD wheels for Morris, Bedford and Austin are made by Dunlop.
I think at least some of the British rims were made by SANKEY .... Was Sankey owned by Dunlop ? Pretty sure my Morris CS8 rims are marked SANKEY but I will have a look. Also found brass wheel nuts on a CS8 I have ....

BTW that's a nice original Maple Leaf truck . Are those 10.50 x 18 tyres
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Last edited by Mike K; 05-04-19 at 03:20.
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  #10  
Old 05-04-19, 01:49
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Quote:
Originally Posted by Mike Kelly View Post
The manufacture of the Chev 18" split rims is mentioned in the GMH 'War Record' book. My understanding is, GMH made the rims themselves , GMH had a huge press for the job . Don't know where Ford Australia got theirs from . Anybody know ?
The GM/H 18" rims look quite different to the WD-Pattern 16" and 20" rims in that they have have quite a few more rim-half bolts in a smaller thread than the British design rims.

Ford Australia's rims seem to be more faithful to the British/Canadian design, so I wonder if they are Canadian supplied?
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  #11  
Old 05-04-19, 02:01
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And then there were the heavy-duty 5 stud wheels made by GM/H for the Australian Maple Leaf trucks.
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File Type: jpg IMG_5268.JPG (86.8 KB, 4 views)
File Type: jpg IMG_5291.JPG (78.6 KB, 5 views)
File Type: jpg IMG_5277.JPG (88.8 KB, 4 views)
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  #12  
Old 05-04-19, 02:21
David Herbert David Herbert is offline
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Tony,
Are those Maple Leaf 5 stud ones 16" or 18" ? I am guessing 18" as they look very much like the 10 stud GM/H ones and also have twelve studs holding the halves together.

David
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  #13  
Old 04-04-19, 13:59
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Quote:
Originally Posted by Bob Carriere View Post
Second question.... concerning the origin of the brake drum posted last in Hanno's posting........... I have a similar picture taken from the wrecks of North Africa...... attached...... from the picture I have concluded that it is a Chevrolet chassis from the cleanly sand blasted sheet metal, indentation on the frame for locating a LHD steering box and the spring layout. The fender seems to indicate an earlier version of LRDG using a 38-39 or 1940 round fender model.......
This is not necessarily a LHD vehicle, in fact it is more likely not to be.

Canadian Built Ford, Chev and Dodge vehicles have the mountings for both RHD and LHD steering boxes on the chassis, even the CMP, although no-one has ever forund a LHD steering box that will fit a CMP chassis!
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  #14  
Old 03-04-19, 23:52
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Quote:
Originally Posted by Bob Carriere View Post
Regarding the 6 stud wheels used by the HUP and now I learn also by the Dodge axles of RHD drive Canadian made trucks.
Dodge T-212 8-cwt truck only. The MCP 15-cwt’s have the same 8-bolt WD split rim as CMP 15-cwt trucks.

Quote:
here are some slight differences wed have observed..... the six stud wheels MUST have a different taper than a regular CMP 8 bolts version......as the 900x16 tires do slip down easier than the 5 degree C15a rims.

The six stud wheels/rims I have seen all have the Kelsey-Hayes stamping which includes the date of manufacturing.

It also seems from comparing GM parts listing that the early first 200 Lynx Mk I also shared the six stud brake drum on the front axle.

Comments????
The six-stud CMP wheel was used on 8-cwt trucks. It doesn’t have a different bead taper, it simply has a smaller diameter as explained in Mike’s thread here:
http://www.mapleleafup.net/forums/showthread.php?t=1594

HTH,
Hanno
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  #15  
Old 04-04-19, 11:27
Grant Bowker Grant Bowker is offline
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Hanno,
I haven't measured the two types of Canadian 16" rims to confirm actual size and shape but what you are saying ("The six-stud CMP wheel was used on 8-cwt trucks. It doesn’t have a different bead taper, it simply has a smaller diameter") is in conflict with the AEDB design record that states the rim for use with 9.25-16 tires has a 5 degree rim base taper and the rim for use with 9.00-16 and 10.50-16 tires has a 1-1/2 degree taper. The AEDB record doesn't give a diameter at the bead seat other than the nominal 16".

Mike's measurements (taken from tires) show both a smaller diameter and a greater taper (assuming the tire wall was of similar thickness at the bead seat) for tires intended for use with the "American" rim.
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  #16  
Old 04-04-19, 13:46
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Quote:
Originally Posted by Hanno Spoelstra View Post
The six-stud CMP wheel ....... doesn’t have a different bead taper, it simply has a smaller diameter ...[/url]
It actually HAS BOTH.
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  #17  
Old 04-04-19, 14:16
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Default 16" rim diameter and bead taper

Quote:
Originally Posted by Grant Bowker View Post
I haven't measured the two types of Canadian 16" rims to confirm actual size and shape but what you are saying ("The six-stud CMP wheel was used on 8-cwt trucks. It doesn’t have a different bead taper, it simply has a smaller diameter") is in conflict with the AEDB design record that states the rim for use with 9.25-16 tires has a 5 degree rim base taper and the rim for use with 9.00-16 and 10.50-16 tires has a 1-1/2 degree taper. The AEDB record doesn't give a diameter at the bead seat other than the nominal 16".
Grant, thanks for correcting me in that the rim base taper differs between the 6-stud and 8-stud WD split rim. Good to see you quoting the AEDB Design Record, it is those primary sources which we need to refer to more often.

I made that remark as most people think only the rim base taper is different, which isn't true - see Tony's remark below. A 3.5 degree difference in rim base taper would go unnoticed when fitting a tyre. A larger rim diameter does.

Quote:
Originally Posted by Tony Smith View Post
It actually HAS BOTH.
Thanks for clearing that up, Tony.

Hanno
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