16" 8 bolt Split Rims for 1.5 ton Australian Chevrolet Trucks

[Tony Smith]

Originally Posted by David Herbert

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

Originally Posted by Mike Kelly

BTW that's a nice original Maple Leaf truck . Are those 10.50 x 18 tyres

Yes, 10.50-18 tyres on 18x8.00 rims.

[Philippe Jeanneau]

Originally Posted by Jacques Reed

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,

Hello Jacques,

Thank you very much for the clear answer and photos, it is a great starting point… As for the rest of the thread, I was hoping it would stay close to the specifics of my question, since after reading all the additional wealth of information, while useful in many ways (it can become difficult to retain very fast) since we start to deal with other details that are not pertinent at the moment...

Please forgive the seemingly ungrateful reply, but it is not my intent... I appreciate all the additional very technical details, but I was only hoping we would remain within the confines of wheels that use the GM 10 X 7.25 bolt circle with a 4.75" pilot hole and designed with either 8 or 12 studs holding the two halves together. I realize that turns into 2 different wheels and more apparently!

For the sake of simplicity, shall we first classify the wheels that only share the 10 x 7.25 bolt circle with a 4.75 pilot hole? Perhaps that should have been the title of my thread. My apology for it is a huge learning curve here...

To the point, and as indicated by Tony Smith, on the 10 x 7.25 bolt circle wheels manufactured by GM/Holden Australia we have:

1- 16" x 6" (8 bolt split wheel)

2- 18" x 8" (12 bolt split wheel)

The next style would be a 5 x 7.25 bolt circle and 4.75 pilot hole also, unique only to Australian Maple Leaf Trucks, also made by Holden…

A) 18" x 8" (12 bolt split wheel)

Furthermore, I understand that there was also a 20”x 8” (12 bolt split wheel) that shared the same bolt circle with and pilot hole; manufactured also by General Motors in Holden Australia… Is that correct?

Lastly, would it be accurate to say that all these 16”, 18” and 20” split wheels share a backspace equivalent to the 16” x 6.0” (8 bolt) Ford Kelsey wheel which was 4 -1/4”? or...
Does anyone have the definitive answer?? Which would bring us to the next maze of information- that would pertain to all the different axle combinations (with or without wheel spacers) used under these 1.5 ton 133” wheel base vehicles with a combination of either one of these wheels…

[Tony Smith]

Originally Posted by Philippe Jeanneau

As for the rest of the thread, I was hoping it would stay close to the specifics of my question,

For the sake of simplicity, shall we first classify the wheels that only share the 10 x 7.25 bolt circle with a 4.75 pilot hole? Perhaps that should have been the title of my thread. My apology for it is a huge learning curve here...

To the point, and as indicated by Tony Smith, on the 10 x 7.25 bolt circle wheels manufactured by GM/Holden Australia we have:

1- 16" x 6" (8 bolt split wheel)

2- 18" x 6" (12 bolt split wheel)

The next style would be a 5 x 7.25 bolt circle and 4.75 pilot hole also, unique only to Australian Maple Leaf Trucks, also made by Holden…

A) 18" x 6" (12 bolt split wheel)

Furthermore, I understand that there was also a 20” x 6” (12 bolt split wheel) that shared the same bolt circle with and pilot hole; manufactured also by General Motors in Holden Australia… Is that correct?

Lastly, would it be accurate to say that all these 16”, 18” and 20” split wheels share a backspace equivalent to the 16” x 6.0” (8 bolt) Ford Kelsey wheel which was 4 -1/4”? or...

My response to you (without the benefit of photos, as I can't view them on Facebook) was regarding the 16" 8 bolt (8x lug bolt, 8x dividing rim bolt, I would describe that as "8 Bolt") rim, which I said was the standard WD/DND rim made by Kelsey, GM, And Dunlop. It appears they were also made by Sankey. This is not a 10 x 7.25 bolt circle wheel. As far as I know, this rim was never manufactured by GM/H in Australia. This is the same rim as pictured by Andrew H and Jacques.

On 1533 trucks (and 15cwt CMP's) this was fitted with a 9.00-16 tyre, while on CC60L trucks (and 30cwt CMP's) it was fitted with 10.50-16 tyres. These are Canadian vehicle designs and production features.

[Tony Smith]

The GM Canada 1543X2 had 18" wheels with a 10 x 7.25 bolt circle and featured 8 dividing rim bolts. Again, this is a Canadian design and production vehicle. The X2 indicates the vehicles were assembled in the UK. Some of these vehicles came complete to Australia, but they also saw service with other countries, such as Poland.

[Tony Smith]

ONLY the GM/H assembled vehicles has the 18" wheels with a 10 x 7.25 bolt circle and 12 dividing rim bolts. I have not seen a chassis code for these vehicles, but they are not completely manufactured by GM/H. The chassis and major components were sourced from GM Canada, with local items like the cabs and wheels made here. As their payload rating is the same as the 1543X2, but assembled here, the code may well be something like 1543X4 (X4 for Australian assembly).

[Bob Carriere]

Hi Tony

I see we are reading from the same Chevrolet army parts book.........

This has me puzzled....... the parts list only references * indicating 32x6 tires or X indicating 10:50 x 16 tires........ from what you are saying it seems to indicate they were fitted with 18 x 10:50 tires/rims when re-asssembled in the UK for Poland or Australia.

So complicated.

Bob C

[Tony Smith]

Originally Posted by Bob Carriere

Hi Tony

I see we are reading from the same Chevrolet army parts book.........
from what you are saying it seems to indicate they were fitted with 18 x 10:50 tires/rims when re-asssembled in the UK for Poland or Australia.

This has me puzzled....... So complicated.

Bob C

The black and white "Factory" pics are at Oshawa, so there was no change to the vehicle on arrival at it's destination. The X2 indicates it's destination, or perhaps it's contract. I wish David Hayward was here to explain in his rambling way the oddities of Chevrolet contracts because they really are a confusing mess.

Gimme a Ford anyday.