MB Spring Schackles (U Schackles)

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
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Re: MB Spring Schackles (U Schackles)

Post by Joe Gopan » Wed Jun 21, 2017 4:25 am

The Recessed Bushings can be found with pressed in fittings, the recessed with threaded fittings come in two different threaded fitting sizes. Study your TM-10 and SNL Parts manual for information on the threaded fitting size.
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Re: MB Spring Schackles (U Schackles)

Post by Niblet » Wed Jun 21, 2017 4:51 am

how can you tell the difference between prssed in and threaded by looking?
I imagine the threaded have some flats on them? (like the ones presently on my '45)

the one I have pictured here must be pressed in
IMG_4029.JPG
IMG_4029.JPG (119.27 KiB) Viewed 997 times
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Re: MB Spring Schackles (U Schackles)

Post by Ralph » Wed Jun 21, 2017 5:09 am

yep :)
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Re: MB Spring Schackles (U Schackles)

Post by m3bobby » Wed Jun 21, 2017 12:51 pm

I've just removed the shackles from my 42 GPW. I'm convinced they are original to the jeep as they have the same paint layers as the rest of the jeep. They are the curved shackle with the recessed headed bushings. There is also some wording forged into the side.

Unfortunately I need a new shackle as I had to cut one in half as the bushing seized solid and the head sheeted off! I also need to find 6 new recessed head bushings as mine literally have no threads left!!
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Re: MB Spring Schackles (U Schackles)

Post by Niblet » Wed Jun 21, 2017 12:52 pm

"pat PD" or something like that I bet
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Re: MB Spring Schackles (U Schackles)

Post by Joe Gopan » Wed Jun 21, 2017 12:53 pm

I have salvaged many recessed bushings from MBT thru M-416 Trailers.
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Re: MB Spring Schackles (U Schackles)

Post by Michael O. » Wed Jun 21, 2017 3:34 pm

Niblet wrote:how can you tell the difference between prssed in and threaded by looking?
I imagine the threaded have some flats on them? (like the ones presently on my '45)

the one I have pictured here must be pressed in
IMG_4029.JPG
Tim, I believe that the one on the left is post war. I have a few like that that I believe came in 1950's packaging.
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Re: MB Spring Schackles (U Schackles)

Post by Niblet » Wed Jun 21, 2017 3:36 pm

yes you are correct the flat faced bushings are post war,,thanks!
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Re: MB Spring Schackles (U Schackles)

Post by DanoZeman » Wed Jun 21, 2017 4:36 pm

Here is a set of nos early type that I have they are the pressed in zerk kind and the shackles themselves have no markings. Hope it helps.
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Re: MB Spring Schackles (U Schackles)

Post by Chuck Lutz » Thu Jun 22, 2017 9:19 am

Pressed-in do not need a hex head....those that are threaded in do have a hex head.
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Re: MB Spring Schackles (U Schackles)

Post by m3bobby » Fri Jun 23, 2017 12:56 pm

Niblet wrote:"pat PD" or something like that I bet

Yes, that's it 'Pat PD', does that mean patent pending? Would these be correct for a 42 GPW?

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