GPW Frame Horn

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
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DogDoc
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GPW Frame Horn

Post by DogDoc » Wed Jan 10, 2018 12:05 pm

Does anyone know the specific measurements for a '43 GPW frame horn. Mine has been cut through the hole between the two gussets and I am ready to try to fix it.

Thanks,
Jay
43 GPW 110748
52 M38
44 Bantam T3
45 GPW 277391


Scrumps
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Re: GPW Frame Horn

Post by Scrumps » Wed Jan 10, 2018 12:46 pm

Try looking at the drawings from the Henry Ford collection listed in the top "sticky" thread.

The bumper gusset drawings should help.

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DogDoc
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Re: GPW Frame Horn

Post by DogDoc » Wed Jan 10, 2018 7:24 pm

I found the drawing but I could not make out the writing. Any secrets?

Jay
43 GPW 110748
52 M38
44 Bantam T3
45 GPW 277391

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YLG80
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Re: GPW Frame Horn

Post by YLG80 » Thu Jan 11, 2018 10:15 pm

Hello Jay,
What is the THF drawing number that you want?
The THF number is available below the drawing.
I will give you a link to get a printable pdf copy.
Yves
Ford GPW 1943 - Louisville - DoD 12-7-43
serial 164794

DogDoc
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Re: GPW Frame Horn

Post by DogDoc » Fri Jan 12, 2018 10:04 am

Yves,

This is the number:
THF403815 / Drawing, "Ass'y - Frame," Ford GPW, March 16, 1945 / inverted, exposure corrected

Thanks,
Jay
43 GPW 110748
52 M38
44 Bantam T3
45 GPW 277391

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YLG80
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Re: GPW Frame Horn

Post by YLG80 » Sat Jan 13, 2018 1:15 am

Hi Jay,
No luck :o : the GPW 5005 Frame assy drawing is the worse scan published by the THF.org.
It was made from a very large drawing, and the resolution does not allow to read the characters and the dimensions.
In fact it's an assy drawing with references to sub-parts codes, not a frame rail part drawing with dimensions.

In this pdf file, you will see the front frame part of that poor scan at the very last page.
https://www.dropbox.com/s/75uwx85kzucy0 ... T.pdf?dl=0
I've enhanced that scan as much as I could but when there are not enough pixels in the original photo, you cannot do any better.

However in the same pdf ,you will likely find the required dimensions that you are looking for.
Other guys have had the same problem, and fortunately they have published their drawings with detailed dimensions.
I've included the links to the related G503 topics:
viewtopic.php?t=206309
viewtopic.php?t=187204
Hope it will help.
Yves
Ford GPW 1943 - Louisville - DoD 12-7-43
serial 164794

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Re: GPW Frame Horn

Post by YLG80 » Sat Jan 13, 2018 4:27 am

The L.H. side rail drawing is available on THF, but it's also a very poor scan:
March 16, 1945
https://www.thehenryford.org/collection ... ct/439946/
Attachments
THF404668_FRONT_FRAME_DETAIL_BLURRY.jpg
THF404668_FRONT_FRAME_DETAIL_BLURRY.jpg (28.67 KiB) Viewed 659 times
Ford GPW 1943 - Louisville - DoD 12-7-43
serial 164794

DogDoc
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Re: GPW Frame Horn

Post by DogDoc » Sat Jan 13, 2018 5:02 am

I can definitely get there from that.
Thanks a million.

Jay
43 GPW 110748
52 M38
44 Bantam T3
45 GPW 277391

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Re: GPW Frame Horn

Post by YLG80 » Sat Jan 13, 2018 5:28 am

Hi Jay,
Here you will find the gussets drawings.
It will help you to determine the rivet holes distances (2.31'' and 3.0'') if you are missing one of these holes due to the frame cut.
THF403983_GPW-17754-17755_A-1128_A-1127_GUSSET_FRONT_BUMPER_UPPER_L-H.jpg
THF403983_GPW-17754-17755_A-1128_A-1127_GUSSET_FRONT_BUMPER_UPPER_L-H.jpg (184.1 KiB) Viewed 649 times
THF403980_GPW-17752-17753_A-1129_A-1130_GUSSET_FRONT_BUMPER_LOWER_L-H.jpg
THF403980_GPW-17752-17753_A-1129_A-1130_GUSSET_FRONT_BUMPER_LOWER_L-H.jpg (155.27 KiB) Viewed 649 times
These are measurements made in a CAD software using the original drawing as a scaled background. Very close dimensions.
From_Sketchup_measurements_on_original_drawing.jpg
From_Sketchup_measurements_on_original_drawing.jpg (82.46 KiB) Viewed 649 times
Good luck.
Yves
Ford GPW 1943 - Louisville - DoD 12-7-43
serial 164794

DogDoc
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Re: GPW Frame Horn

Post by DogDoc » Sat Jan 13, 2018 6:41 am

That last one is amazing! I had seen that picture but felt like that angle from the "Bam Bam" restore pic was too much. Although his work is incredible. I appreciate work to interpret those numbers.

Jay
43 GPW 110748
52 M38
44 Bantam T3
45 GPW 277391

DogDoc
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Re: GPW Frame Horn

Post by DogDoc » Sat Jan 13, 2018 6:45 am

This is what I started with.
Framehorn.jpg
Framehorn.jpg (46.74 KiB) Viewed 636 times
43 GPW 110748
52 M38
44 Bantam T3
45 GPW 277391

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Re: GPW Frame Horn

Post by YLG80 » Sat Jan 13, 2018 6:55 am

Luckily, you still have both gussets rivets holes, and fortunately the missing part is a straight U-shape piece of steel.
Yes, I was impressed by that guy work in the BAM-BAM project.
Yves
Ford GPW 1943 - Louisville - DoD 12-7-43
serial 164794

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Re: GPW Frame Horn

Post by YLG80 » Sat Jan 13, 2018 10:33 am

On the original drawing the angle is exactly 60°.
Yes, the angle was not correct in the BAM-BAM project drawing :wink: .
MB-GPW-Frame_horn_angle.jpg
MB-GPW-Frame_horn_angle.jpg (45.85 KiB) Viewed 612 times
Ford GPW 1943 - Louisville - DoD 12-7-43
serial 164794

DogDoc
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Re: GPW Frame Horn

Post by DogDoc » Sun Feb 18, 2018 3:35 pm

Yves,

I've just about got it together. Thanks again!!

Jay
Attachments
thumbnail.jpg
thumbnail.jpg (111.9 KiB) Viewed 506 times
43 GPW 110748
52 M38
44 Bantam T3
45 GPW 277391

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Re: GPW Frame Horn

Post by pittsjock » Mon Feb 19, 2018 2:34 am

That is some fine work. Nicely done!

Patrick
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