The Ford Barn

jayvee34 · 05-04-2021, 11:31 AM

Does anyone know what the special washer in the U-Joint bolt up to the output shaft on the transmission purpose is? When I changed my transmission there
was not one, only a lock washer. Does it prevent a problem by not having one?
Thanks for any input or answer.
John

Tim Ayers · 05-04-2021, 11:45 AM

Yes, you need it. It's actually a type of spring that has a specific type of name that I'd assume was name after the inventor. When you look, it's slightly concaved and this allows for some slight movement while still being substantial enough to hold the input shaft while also taking the force of the drive shaft wanting to push the U-joint forward and aft.

Y-Blockhead · 05-04-2021, 11:45 AM

Quote:

Originally Posted by jayvee34

Does anyone know what the special washer in the U-Joint bolt up to the output shaft on the transmission purpose is? When I changed my transmission there
was not one, only a lock washer. Does it prevent a problem by not having one?
Thanks for any input or answer.
John

Hold the u-joint on the transmission output shaft. https://www.brattons.com/universal-j...-and-bolt.html I can't imagine Ford would of put it on there if they didn't think it was necessary.

Tom Endy · 05-04-2021, 12:02 PM

The flat washer with the notch in it fits over the end of the transmission output shaft and prevents oil from leaking out through the splines. The Mitchell company offers one that has a rubber seal associated with it. They provide one with each of their synchro transmissions.

Tom Endy

john charlton · 05-04-2021, 12:04 PM

The edge of the dished washer has an upset to engage a spline end .This stops the washer turning when you tighten it up .

John in cool wet windy Suffolk County England .

redmodelt · 05-04-2021, 12:10 PM

Sponsored Links (Register now to hide all advertisements)

We are talking about the keyed washer that holds the u-joint to the output shaft? It is there to prevent the u-joint from moving back and forth to maintain the proper center line of same. For the Model T the u-joint was pinned to the drive shaft both for thrust control and keep that center. The Model A being setup different re thrust but still needed to keep it centered, attached to to the output shaft.

jayvee34 · 05-04-2021, 12:20 PM

Thanks for all the input, looks like it is essential, and I will be getting one.
Thanks again, John

05-04-2021, 11:31 AM	#1
jayvee34 Senior Member Join Date: Apr 2021 Location: St. Augustine, Fl. Posts: 438	U-joint special washer Does anyone know what the special washer in the U-Joint bolt up to the output shaft on the transmission purpose is? When I changed my transmission there was not one, only a lock washer. Does it prevent a problem by not having one? Thanks for any input or answer. John

05-04-2021, 11:45 AM	#2
Tim Ayers Senior Member Join Date: May 2010 Location: NJ Posts: 6,920	Re: U-joint special washer Yes, you need it. It's actually a type of spring that has a specific type of name that I'd assume was name after the inventor. When you look, it's slightly concaved and this allows for some slight movement while still being substantial enough to hold the input shaft while also taking the force of the drive shaft wanting to push the U-joint forward and aft. Last edited by Tim Ayers; 05-04-2021 at 11:57 AM.

05-04-2021, 12:02 PM	#4
Tom Endy Senior Member Join Date: May 2010 Location: Southern California Posts: 3,168	Re: U-joint special washer The flat washer with the notch in it fits over the end of the transmission output shaft and prevents oil from leaking out through the splines. The Mitchell company offers one that has a rubber seal associated with it. They provide one with each of their synchro transmissions. Tom Endy

05-04-2021, 12:04 PM	#5
john charlton Senior Member Join Date: May 2010 Posts: 1,343	Re: U-joint special washer The edge of the dished washer has an upset to engage a spline end .This stops the washer turning when you tighten it up . John in cool wet windy Suffolk County England .

05-04-2021, 12:10 PM	#6
redmodelt Senior Member Join Date: May 2010 Location: Portland OR Posts: 6,410	Re: U-joint special washer Sponsored Links (Register now to hide all advertisements) We are talking about the keyed washer that holds the u-joint to the output shaft? It is there to prevent the u-joint from moving back and forth to maintain the proper center line of same. For the Model T the u-joint was pinned to the drive shaft both for thrust control and keep that center. The Model A being setup different re thrust but still needed to keep it centered, attached to to the output shaft. __________________ I know the voices aren't real but damn they have some good ideas!

05-04-2021, 12:20 PM	#7
jayvee34 Senior Member Join Date: Apr 2021 Location: St. Augustine, Fl. Posts: 438	Re: U-joint special washer Thanks for all the input, looks like it is essential, and I will be getting one. Thanks again, John