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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

51 3 Speed Side Shift Synchronizer

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Old Oct 26, 2017 | 03:32 PM
  #1  
Splash440's Avatar
Splash440
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From: Dover, NC
51 3 Speed Side Shift Synchronizer

I am trying to reassemble a 51 3 speed synchronizer and having some trouble. The synchro clips (inserts) were damaged and fell out when I disassemble the transmission, so I am not sure how they were installed.

The Ford manual says install the inserts and then the retaining ring. Based on my attempts and how the brass synchro rings go together This does not seem to work.

Any help will be greatly appreciated.


 
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Old Oct 26, 2017 | 05:01 PM
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ktgovols
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David,

I’m not sure I fully understand your question but here are a few pictures I took

The snap rings are in with the brass synchro rings on either end of the center hub



Then the clips are placed on top of the snap rings. And the sleeve is slid over the top.



Then the hub slides over the shaft







I’m not sure if this is any help to you or not.

Keith
 
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Old Oct 26, 2017 | 05:45 PM
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Splash440
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Thanks, John

Yes, that does help. The manual said put the inserts on the center gear first then the snap ring, that just does not work.

I was pretty sure that was how it had to go, but your pictures make it clear.
 
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Old Oct 26, 2017 | 07:17 PM
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Before you assemble it, take a close look at the inserts. I bought some new ones and the ends are made by folding down the material. But the ends' edges stuck out beyond the long sides of the inserts. I filed them down til they were flush with the sides, and it seems to make shifts smoother.

Nice pics, Keith!
 
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Old Oct 26, 2017 | 07:48 PM
  #5  
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Splash440
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From: Dover, NC
Originally Posted by ALBUQ F-1
Before you assemble it, take a close look at the inserts. I bought some new ones and the ends are made by folding down the material. But the ends' edges stuck out beyond the long sides of the inserts. I filed them down til they were flush with the sides, and it seems to make shifts smoother.

Nice pics, Keith!
Ross, I did notice the new ones I got were slightly extended. I will be sure I even them up before I put them in tomorrow.

Thanks,
 
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Old Oct 27, 2017 | 03:03 PM
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