The Ford Barn

Dave1931Pickup · 08-05-2022, 07:41 AM

As with most aftermarket parts I have sanded a little bit off of the A-7095 U Joint Retainer Washer so that it will sit in the recess of the U joint knuckle. My question is when the knuckle slips on to the A-7060 Main Shaft there is a gap of about .060" between the shaft and retainer which would make the washer deform when tightened. Is this correct?
Thanks, for your help.

Joe K · 08-05-2022, 08:57 AM

Sounds like the reason for the deformation is one of the "vagaries of construction." Probably the original and first universal joint was constructed and the fit was correct (I can see 0.010 free play of the universal yoke under the washer, although it could be zero)

I have seen an original "cupped" washer on disassembly which would describe the long term effect of what you describe.

Replacement universals AND transmission output shafts have been made which may vary from the original design incrementally - it may even be an "accumulated intolerance" which is when one part is made at one end of it's size range and the other is made at the other end of its range - and the two parts each meet the original design - but the two combined together do not.

For you the solution MAY be to simply "accept" the bending and "tighten it home" OR it may be a matter of putting a smaller diameter washer underneath the large washer to achieve no more than 0.010 free play.

The point of the washer IS to make the universal one with the transmission - mostly for ease of assembly but certainly as a matter of "locating" the universal so it doesn't drift backwards and cut into the universal joint hemisphere (there is not a corresponding restraint to the axle propeller shaft.)

Also, the universal and bolt/washer "binds" the rear transmission shaft and locates the transmission output shaft properly relative to the bearing.

Joe K

john charlton · 08-05-2022, 02:03 PM

The ones I have are mostly slightly "dished" and some have an "upset" notch on the washer edge .

John same place same weather .

J Franklin · 08-05-2022, 03:19 PM

Quote:

Originally Posted by john charlton

The ones I have are mostly slightly "dished" and some have an "upset" notch on the washer.

I think that is how it should be.

john in illinois · 08-05-2022, 04:31 PM

Sponsored Links (Register now to hide all advertisements)

Yes they should be dished edge towards the yolk. You need a tight clamp up as the yolk
Holds the mainshaft in place. Correct washers are very thick and have the upset mentioned.

John

08-05-2022, 07:41 AM	#1
Dave1931Pickup Senior Member Join Date: Jun 2015 Posts: 171	U Joint Retainer Washer As with most aftermarket parts I have sanded a little bit off of the A-7095 U Joint Retainer Washer so that it will sit in the recess of the U joint knuckle. My question is when the knuckle slips on to the A-7060 Main Shaft there is a gap of about .060" between the shaft and retainer which would make the washer deform when tightened. Is this correct? Thanks, for your help.

08-05-2022, 08:57 AM	#2
Joe K Senior Member Join Date: Jul 2010 Location: Cow Hampshire Posts: 4,611	Re: U Joint Retainer Washer Sounds like the reason for the deformation is one of the "vagaries of construction." Probably the original and first universal joint was constructed and the fit was correct (I can see 0.010 free play of the universal yoke under the washer, although it could be zero) I have seen an original "cupped" washer on disassembly which would describe the long term effect of what you describe. Replacement universals AND transmission output shafts have been made which may vary from the original design incrementally - it may even be an "accumulated intolerance" which is when one part is made at one end of it's size range and the other is made at the other end of its range - and the two parts each meet the original design - but the two combined together do not. For you the solution MAY be to simply "accept" the bending and "tighten it home" OR it may be a matter of putting a smaller diameter washer underneath the large washer to achieve no more than 0.010 free play. The point of the washer IS to make the universal one with the transmission - mostly for ease of assembly but certainly as a matter of "locating" the universal so it doesn't drift backwards and cut into the universal joint hemisphere (there is not a corresponding restraint to the axle propeller shaft.) Also, the universal and bolt/washer "binds" the rear transmission shaft and locates the transmission output shaft properly relative to the bearing. Joe K __________________ Shudda kept the horse. Last edited by Joe K; 08-05-2022 at 09:07 AM.

08-05-2022, 02:03 PM	#3
john charlton Senior Member Join Date: May 2010 Posts: 1,343	Re: U Joint Retainer Washer The ones I have are mostly slightly "dished" and some have an "upset" notch on the washer edge . John same place same weather .

08-05-2022, 04:31 PM	#5
john in illinois Senior Member Join Date: May 2010 Location: Illinois Posts: 2,220	Re: U Joint Retainer Washer Sponsored Links (Register now to hide all advertisements) Yes they should be dished edge towards the yolk. You need a tight clamp up as the yolk Holds the mainshaft in place. Correct washers are very thick and have the upset mentioned. John __________________ Welcome each day