Driveshaft question

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Steve Bender
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Driveshaft question

Post by Steve Bender » Sat Apr 15, 2023 9:34 am

I picked up a driveshaft that has the original pinion set up with the sleeve and ballbearings set up just like stock. The other end has machine square end for U joint just like stock. The center section is much larger diameter. I can't see any markings. Was there any variation between years? Was there a run of old replacement that were larger diameter?
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RGould1910
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Re: Driveshaft question

Post by RGould1910 » Sat Apr 15, 2023 10:38 am

Pretty much all driveshafts I've seen have been machined only at both ends and are consequently larger in between. Are you saying the one you have is significantly larger? I can't speak to that.
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Topic author
Steve Bender
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Re: Driveshaft question

Post by Steve Bender » Sat Apr 15, 2023 10:42 am

Compared to all the stock driveshafts that I have it is significantly larger diameter. I'll measure it when I get home.
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Jerry VanOoteghem
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Re: Driveshaft question

Post by Jerry VanOoteghem » Sat Apr 15, 2023 10:58 am

Probably an aftermarket replacement, not made by Ford. Look the Ford logo stamping. No stamp = not Ford. Some of the aftermarket examples are not well balanced and vibrate badly... or so I've read.
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Dan McEachern
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Re: Driveshaft question

Post by Dan McEachern » Sat Apr 15, 2023 3:21 pm

the FORD script is usually found on one side of the u-joint flat. Also, most FORD driveshafts have a Brinell hardness test indentation somewhere on the unmachined portion of the shaft.
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TrentB
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Re: Driveshaft question

Post by TrentB » Sat Apr 15, 2023 5:39 pm

What Dan McEachern writes is generally true, however, relatively few Model T parts had the name “Ford” in script on them before March 19, 1919. After that date virtually all genuine parts had Ford script on them somewhere.

Respectfully Submitted,

Trent Boggess
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Moxie26
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Re: Driveshaft question

Post by Moxie26 » Mon Apr 17, 2023 7:37 pm

Steve, were you making reference to the drive shaft housing having a larger diameter then tapering down slightly at the front end? I have seen drive shaft housings like that but not sure on the manufacturer. A good friend's 1925 Touring had such driveshaft.
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Steve Bender
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Re: Driveshaft question

Post by Steve Bender » Tue Apr 18, 2023 11:16 am

I was referring to the drive shaft not the housing that it rides in. It must be a replacement not original Ford. There is no Ford markings and no dot marks in the center. I believe the dot was a test for hardness ?
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speedytinc
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Re: Driveshaft question

Post by speedytinc » Tue Apr 18, 2023 11:31 am

The hardness test spot is centered on a flat ground spot.
That flat grind spot is about 1-1.5" long & 3/16"wide with a dimple in the center.
Hard to miss if its there.
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DanTreace
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Re: Driveshaft question

Post by DanTreace » Tue Apr 18, 2023 11:52 am

Spurious Parts :shock:

8A9DAF4C-443C-45CF-8524-C518919D7897_1_201_a.jpeg
610465CF-7290-4E0C-85EE-63D16B6B2DF1_1_201_a.jpeg
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Don’t find fault, find a remedy; anybody can complain. Henry Ford
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Jerry VanOoteghem
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Re: Driveshaft question

Post by Jerry VanOoteghem » Tue Apr 18, 2023 11:55 am

DanTreace wrote: ↑
Tue Apr 18, 2023 11:52 am
 Spurious Parts :shock:
... Of dubious quality! ;)
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