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  #1  
Old 21-11-19, 17:05
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cordenj cordenj is offline
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Default HUP Halfshaft Failure: Anyone have a spare available?

Afternoon all,

A friend's HUP lost rear drive on Sunday while out for a gentle run.
No drama, no "bang", just failed.

As we suspected, investigation has shown the long halfshaft failed at the start of the splines.

It appears to have been a progressive crack that finally failed.

We now are looking for a replacement.

Does anyone have a spare for sale?

Or does anyone know where else the HUP axle was used in GM's small truck range? As that may give us a lead to a spare.

Many thanks
John
Attached Thumbnails
HUP_HAlfshaft-a.jpeg   HUP_HAlfshaft-b.jpeg   HUP_HAlfshaft-c.jpeg  
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John.
1944 Chevrolet C8a HUP ZL-2
1944 Willys MB (British Guards Armoured Div);
1944 BSA Folding Bicycle (Best "Para Bike" at War&Peace Show 2011, 2012, 2014 and 2015);
Trailer, 10cwt, Water Lightweight, 100 gall;
Trailer, 10cwt, Cargo Lightweight 10cwt No1 MkII;
Trailer, 10cwt, Electrical Repair Mk.2; Ex-Airborne REME;
Trailer, 10cwt, Lightweight, Electric Welding Mk 2;
SOLD:1943 Chevrolet C60s Wrecker
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  #2  
Old 21-11-19, 17:47
Phil Waterman Phil Waterman is offline
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Default Old threads might help

Hi John

As the saying goes been there had that happen, got the T-shirt. Over the years I've broken both rear axles on my HUP. First time, probably 20 years ago, I got lucky and somebody had a spare. But even then they were scarce as hens teeth.

When the other side snapped I when the route of having one made. It worked very well found a race car and performance out fit that gave me really good service. Will look for that old MLU thread.

Hear is a more recent thread about having new shafts made

http://www.mapleleafup.net/forums/sh...xle#post242291

Hope this helps.

Cheers Phil
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  #3  
Old 21-11-19, 18:18
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cordenj cordenj is offline
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Default

Thanks Phil,

We did suspect that might be the answer.

But we were wondering what other vehicles the axle was used with, as seemed unlikely for GM to design a complete one-off for the HUP
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John.
1944 Chevrolet C8a HUP ZL-2
1944 Willys MB (British Guards Armoured Div);
1944 BSA Folding Bicycle (Best "Para Bike" at War&Peace Show 2011, 2012, 2014 and 2015);
Trailer, 10cwt, Water Lightweight, 100 gall;
Trailer, 10cwt, Cargo Lightweight 10cwt No1 MkII;
Trailer, 10cwt, Electrical Repair Mk.2; Ex-Airborne REME;
Trailer, 10cwt, Lightweight, Electric Welding Mk 2;
SOLD:1943 Chevrolet C60s Wrecker
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  #4  
Old 21-11-19, 23:17
Phil Waterman Phil Waterman is offline
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Hi

If it did fit anything else would probably been a C15A. I don't have a parts book for those so can't check the part number. But the HUP rear axles part numbers are Right 5807334 Left 5807333.

As GM making special parts, while Ford and GM did use common parts from prewar vehicles but I don't remember any with off set differencials.

Cheers Phil
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`41 C60L Pattern 12
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  #5  
Old 21-11-19, 23:28
Alex van de Wetering Alex van de Wetering is offline
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John,

Don't know if it helps, but I believe Jonathan Moore had new ones made for his C8A.

Alex
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  #6  
Old 21-11-19, 23:39
Phil Waterman Phil Waterman is offline
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Default That's the earlier thread

Hi Alex

That's the link I reference in the earlier post. As Jonathan thread was newer and his source was closer to John who is looking.

Cheers Phil
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`41 C60L Pattern 12
`42 C60S Radio Pattern 13
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http://canadianmilitarypattern.com/
New e-mail Philip@canadianmilitarypattern.com
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  #7  
Old 22-11-19, 02:40
Bob Carriere Bob Carriere is offline
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Default Spline size/number....

Hi Phil

Did you not also have an issue with finding the correct almost unique HUP spline design for your axle shaft????

On the other hand I do have a spare long and short axle for a HUP.... not sure of the spline pattern........ wish it was not so expansive to ship across the pond or the other side of the world.

Cheers
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  #8  
Old 22-11-19, 10:01
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cordenj cordenj is offline
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Default HUP Halfshafts

I have contacted the same company that Jonathon Moore used, and asked for a price for another pair.

Depending on the quote, we may get several sets made as unit cost should be lower.

Will keep MLU posted

Thanks
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John.
1944 Chevrolet C8a HUP ZL-2
1944 Willys MB (British Guards Armoured Div);
1944 BSA Folding Bicycle (Best "Para Bike" at War&Peace Show 2011, 2012, 2014 and 2015);
Trailer, 10cwt, Water Lightweight, 100 gall;
Trailer, 10cwt, Cargo Lightweight 10cwt No1 MkII;
Trailer, 10cwt, Electrical Repair Mk.2; Ex-Airborne REME;
Trailer, 10cwt, Lightweight, Electric Welding Mk 2;
SOLD:1943 Chevrolet C60s Wrecker
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  #9  
Old 22-11-19, 10:25
Alex van de Wetering Alex van de Wetering is offline
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Default

Sorry Phil, missed that
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  #10  
Old 22-11-19, 11:48
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Hanno Spoelstra Hanno Spoelstra is offline
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John,

I think you need to team up with Jonathan & Phil in having new ones made.

But, as a very long shot, if you send me the dimensions of the shaft I can check a recently acquired stock of spares.

Hanno
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  #11  
Old 22-11-19, 17:49
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cordenj cordenj is offline
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Default

Thanks Hanno,

The broken shaft is some distance away, but I will see if I can get the dimensions to you
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John.
1944 Chevrolet C8a HUP ZL-2
1944 Willys MB (British Guards Armoured Div);
1944 BSA Folding Bicycle (Best "Para Bike" at War&Peace Show 2011, 2012, 2014 and 2015);
Trailer, 10cwt, Water Lightweight, 100 gall;
Trailer, 10cwt, Cargo Lightweight 10cwt No1 MkII;
Trailer, 10cwt, Electrical Repair Mk.2; Ex-Airborne REME;
Trailer, 10cwt, Lightweight, Electric Welding Mk 2;
SOLD:1943 Chevrolet C60s Wrecker
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  #12  
Old 22-11-19, 18:53
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Hanno Spoelstra Hanno Spoelstra is offline
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Quote:
Originally Posted by cordenj View Post
The broken shaft is some distance away, but I will see if I can get the dimensions to you
Same here John, even basic lenght and diameter would help to ID the one or two in stock (of which I suspect are for C15A).

Hanno
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  #13  
Old 25-11-19, 20:16
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cordenj cordenj is offline
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Default HUP Halfshaft Dimensions

Hi Hanno,

Measured an unbroken halfshaft today:

Diameter = 1.5" (37.6mm)
Length [up to the face of the flange]: 40.75" (1034mm)

Flange diameter: 5.25" (133mm)
Flange thickness: 0.46" (12mm)

Thanks
John
__________________
John.
1944 Chevrolet C8a HUP ZL-2
1944 Willys MB (British Guards Armoured Div);
1944 BSA Folding Bicycle (Best "Para Bike" at War&Peace Show 2011, 2012, 2014 and 2015);
Trailer, 10cwt, Water Lightweight, 100 gall;
Trailer, 10cwt, Cargo Lightweight 10cwt No1 MkII;
Trailer, 10cwt, Electrical Repair Mk.2; Ex-Airborne REME;
Trailer, 10cwt, Lightweight, Electric Welding Mk 2;
SOLD:1943 Chevrolet C60s Wrecker
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  #14  
Old 25-11-19, 22:01
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Haridimos Haridimos is offline
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Default

Quote:
Originally Posted by cordenj View Post
I have contacted the same company that Jonathon Moore used, and asked for a price for another pair.

Depending on the quote, we may get several sets made as unit cost should be lower.
Hi John, Ι have my Halfshafts out of the axles at the time, so can make any measurements for you.

If you decide to go for new made ones, I'm ready to order one set.

Kostas
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  #15  
Old 26-11-19, 19:43
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Hanno Spoelstra Hanno Spoelstra is offline
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Default

Quote:
Originally Posted by cordenj View Post
Hi Hanno,

Measured an unbroken halfshaft today:

Diameter = 1.5" (37.6mm)
Length [up to the face of the flange]: 40.75" (1034mm)

Flange diameter: 5.25" (133mm)
Flange thickness: 0.46" (12mm)

Thanks
John
John,

Will be checked this weekend, stay tuned (but don't hold your breath as it is a long shot).

Regards,
Hanno
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  #16  
Old 27-11-19, 09:05
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cordenj cordenj is offline
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Thanks Hanno
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John.
1944 Chevrolet C8a HUP ZL-2
1944 Willys MB (British Guards Armoured Div);
1944 BSA Folding Bicycle (Best "Para Bike" at War&Peace Show 2011, 2012, 2014 and 2015);
Trailer, 10cwt, Water Lightweight, 100 gall;
Trailer, 10cwt, Cargo Lightweight 10cwt No1 MkII;
Trailer, 10cwt, Electrical Repair Mk.2; Ex-Airborne REME;
Trailer, 10cwt, Lightweight, Electric Welding Mk 2;
SOLD:1943 Chevrolet C60s Wrecker
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