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16" 8 bolt Split Rims for 1.5 ton Australian Chevrolet Trucks
Looking for information, specifically the width and backspace of the 16" (8 bolt) split wheels fitted to 1.5 ton Australian Chevrolet trucks between the years 1940-1945. The posting below is from February 4th. Thank you.
https://www.facebook.com/groups/66266488488/ Last edited by Philippe Jeanneau; 31-03-19 at 17:31. |
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I know you've already asked these questions repeatedly before, so I'm not sure what further information you are expecting..
The 30Cwt CMP , MCP and 1533X2 trucks are all standard Canadian designs and the 16" rim is the the common 16x6.0 design used by the WD/DND (ie Universal to Ford, Chev, Morris, Bedford), not just Australian trucks.
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16" 8 bolt Split Rims for 1.5 ton Australian Chevrolet Trucks 1940-1945
Indeed I have, but I have only obtained some of the information, so I hope that if I keep asking someone else might pick up the fact that the backspace on these wheels is still a mystery... Mind you, I have asked for the backspace and not the offset...
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What do you mean by "back space" and "off-set"? These are not terms I am familiar with.
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Does this photo help? These are the 16-inch split-rim wheels on our LRDG 1533X2 truck.
Last edited by Andrew H.; 11-04-19 at 07:52. |
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16" 8 bolt Split Rims for 1.5 ton Australian Chevrolet Trucks
It sure does... I imagine that the wider half of the wheel fits against the hub? and if you were to place a straight edge on that side and measure the distance to the center it would be about 4.00"? Are they original to your vehicle? if not, what do they fit originally?
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Back space- Ford 16" CMP wheel
Hi Philippe,
Using Lang's link definition on my Ford Kelsey 16" CMP wheels the setback is 4-1/4" (108 mm) as measured. A bit of parallax in the photo but when I got down to the level to the wheel the measurement to the bottom of the angle iron from the mounting flange is 4-1/4" Hope this helps. Cheers,
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F15-A 1942 Battery Staff Jacques Reed |
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Philippe,
You may not know this but ALL these British style MOD split rim 16" wheels, whether British, Canadian or Australian (though I think they were made in Canada?) have exactly the same dimensions and are fully interchangeable between vehicles regardless of tire size. The same with the 20" ones except that there were two styles of them - 8 stud dished centre ( used on 3 ton trucks) and 10 stud flat centre (used on Scammells and Matadors etc) The British ones have BSW threaded studs vs the American threads on the Canadian ones and for some strange reason the valve cut out is in a slightly different position which prevents mixing front and back halves but as assemblies they are the same. The only exception to this that I know of is the six stud version used on Dodge D212 and Chevy Heavy Utilities. I believe but am not certain that these used the same pressings as the 8 stud ones. Could someone confirm or correct that please. David |
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Quote:
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18
Australian 30 cwt MCP Chevys were fitted with 900-18 not 900-16 .
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1940 cab 11 C8 1940 Morris-Commercial PU 1941 Morris-Commercial CS8 1940 Chev. 15cwt GS Van ( Aust.) 1942-45 Jeep salad |
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Quote:
Source: https://www.facebook.com/groups/6626...7100302738489/
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Regards, Hanno -------------------------- |
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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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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
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Tony has the answers......
Thanks Tony for clearly highlighting the differences of the six bolt rim.
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
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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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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
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Quote:
Quote:
http://www.mapleleafup.net/forums/showthread.php?t=1594 HTH, Hanno
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Regards, Hanno -------------------------- |
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rims
Quote:
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1940 cab 11 C8 1940 Morris-Commercial PU 1941 Morris-Commercial CS8 1940 Chev. 15cwt GS Van ( Aust.) 1942-45 Jeep salad |
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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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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
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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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Quote:
H.
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Regards, Hanno -------------------------- |
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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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Quote:
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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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Quote:
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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16" rim diameter and bead taper
Quote:
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. Thanks for clearing that up, Tony. Hanno
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Regards, Hanno -------------------------- |
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Quote:
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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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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Sankey
Quote:
BTW that's a nice original Maple Leaf truck . Are those 10.50 x 18 tyres
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1940 cab 11 C8 1940 Morris-Commercial PU 1941 Morris-Commercial CS8 1940 Chev. 15cwt GS Van ( Aust.) 1942-45 Jeep salad Last edited by Mike Kelly; 05-04-19 at 03:20. |
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