gpw first pattern ribs on axle

Feb, 1942 - GPW1 thru end of first contract, April, 1942 - GPW15000 NO EBAY or COMMERCIAL SALES.
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Jean Georges
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gpw first pattern ribs on axle

Post by Jean Georges » Mon Jul 04, 2016 4:37 am

I have just bought this gpw vin 12469 and just surprised to see
that there is no ribs on the cast iron in the axle
is that ok , or axle have been replaced ?
thanks
jean
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Re: gpw first pattern ribs on axle

Post by Michael O. » Mon Jul 04, 2016 9:38 am

Is it a Spicer? Can you locate the assembly date and report back?
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Re: gpw first pattern ribs on axle

Post by Scott Douglas » Mon Jul 04, 2016 9:07 pm

The axle has been replaced.
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Re: gpw first pattern ribs on axle

Post by Ian Fawbert » Tue Jul 05, 2016 2:45 am

If it helps,

11730, USA 2067040, Est DOD 8 or 9th April 1942, Dallas plant has the rib on its diff housings.

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Re: gpw first pattern ribs on axle

Post by goldenjeep » Thu Jul 07, 2016 11:37 am

28106 has the ribbed axles,I believe front and rear.
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Re: gpw first pattern ribs on axle

Post by lt.luke » Wed Aug 03, 2016 6:56 am

12078 has the ribs.

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Re: gpw first pattern ribs on axle

Post by OldGPW » Thu Aug 04, 2016 7:53 am

I think that casting came out in late 1942; maybe November or so. I used to see them appearing on 12/42 and 1/43 GPWs.
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Re: gpw first pattern ribs on axle

Post by Stingray » Thu Aug 10, 2017 7:04 am

Is there any dated Ford or Axle Manufacturer documentation as to when the ribbed style axles were changed to the ones without the ribs? Thanks
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Re: gpw first pattern ribs on axle

Post by lt.luke » Thu Aug 10, 2017 11:00 am

Stingray wrote:
Thu Aug 10, 2017 7:04 am
Is there any dated Ford or Axle Manufacturer documentation as to when the ribbed style axles were changed to the ones without the ribs? Thanks
I do not believe Ford dated their housings. The ring/pinion gear sets are dated, but obviously a few bolts and they can pop out, so not the most reliable. Gearsets would be made slightly before the housing, I suspect.

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Re: gpw first pattern ribs on axle

Post by Michael O. » Sat Aug 19, 2017 6:23 am

Have you found any dates on the ring gear?
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Re: gpw first pattern ribs on axle

Post by lt.luke » Sun Aug 20, 2017 8:19 pm

Michael O. wrote:
Sat Aug 19, 2017 6:23 am
Have you found any dates on the ring gear?
I seem to remember seeing dates. 1943willysgpw's axles are closed up I think.

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Re: gpw first pattern ribs on axle

Post by Stingray » Wed Aug 23, 2017 6:12 am

We have a VEP GPW that has the axles without the ribs with a ring gear dated 3-11-42. Just wondered if there was any written documentation by Ford or the axle manufacturer of when the rib style axles were changed to the style without the ribs?
Last edited by Stingray on Wed Aug 23, 2017 11:34 am, edited 2 times in total.
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Re: gpw first pattern ribs on axle

Post by lt.luke » Wed Aug 23, 2017 8:26 am

Stingray wrote:
Wed Aug 23, 2017 6:12 am
We have a VEP GPW that had the axles without the ribs with a ring gear dated 3-11-42. Just wondered if there was any written documentation by Ford or the axle manufacturer of when the rib style axles were changed to the style without the ribs?
interesting. I'll have to look for ribs on my April 42 axle. I suspect it has them.


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