The Ford Barn

31 Woody · 02-05-2023, 10:46 PM

My son and I took our transmission apart today and did not see this piece. I checked Snyder’s site and could not find it. I then checked Brattons, but there were three possible items it could be: part number 10270 (I think it is this one), p/n 10240, and p/n 10210. If it is 10270–weird part to put there, but OK…. Where do the other pieces go 10240 and 10210?

mcgarrett · 02-05-2023, 10:55 PM

this is the one you need...

https://www.brattons.com/MAIN-SHAFT-...uctinfo/10270/

31 Woody · 02-05-2023, 11:08 PM

Thank you!

BTERRY29 · 02-06-2023, 08:07 AM

What year? I believe some early transmissions didn’t have it. Tom Endy has a good article explaining the differences. Mine did not have one. When I tried to add prior to discovering this it would cause the trans to bind when reassembled.

31 Woody · 02-06-2023, 01:49 PM

BTerry—Interesting note, this car is a March 1930 build, if we are assuming it has the original transmission. I do know that it does NOT have the brass thrust washer as the early transmissions had, so I was figuring it was either original or at least not an early transmission. Any idea where to get the Tom Endy article on this?

Tom Endy · 02-06-2023, 02:12 PM

Sponsored Links (Register now to hide all advertisements)

Quote:

Originally Posted by 31 Woody

BTerry—Interesting note, this car is a March 1930 build, if we are assuming it has the original transmission. I do know that it does NOT have the brass thrust washer as the early transmissions had, so I was figuring it was either original or at least not an early transmission. Any idea where to get the Tom Endy article on this?

Attached link. Towards the end of the article is a description of the two main shafts.

https://www.santaanitaas.org/wp-cont...ugust-2018.pdf

Tom Endy

31 Woody · 02-06-2023, 07:47 PM

Thank you Tom! It appears the spacer is needed if the splines go all the way on the shaft to the reduced area where the bearing rides. If the splines stop short of the bearing race, and there is a short gap no spacer is required. I enjoyed reading your well documented article—thanks again!

Update: and after inspecting, I need to get the spacer.

31 Woody · 02-12-2023, 09:11 PM

I bought and installed the spacer, then…locked up! I took it apart and removed the spacer, it works again. Figures…

BTERRY29 · 02-13-2023, 08:25 AM

Quote:

Originally Posted by 31 Woody

I bought and installed the spacer, then…locked up! I took it apart and removed the spacer, it works again. Figures…

Exactly what happened to me

bobbader · 02-13-2023, 05:25 PM

Some main shafts have a spacer "built in". It is actually more of a precision "collar" that may actually be a separate piece or an "extension" on the shaft in front of the splined area. Don't forget, these cars are 90+ years old and previous to the production of "Repro" parts that have been around for 50+ years, aftermarket gears and shafts were available from sources other than Ford dealers. You appear to have the main shaft with this "built in" spacer.

02-05-2023, 10:55 PM	#2
mcgarrett Senior Member Join Date: Dec 2013 Location: Waxahachie, Texas Posts: 949	Re: Transmission Main Shaft Spacer Ring this is the one you need... https://www.brattons.com/MAIN-SHAFT-...uctinfo/10270/

02-05-2023, 11:08 PM	#3
31 Woody Senior Member Join Date: May 2013 Location: Lake Forest, California Posts: 239	Re: Transmission Main Shaft Spacer Ring Thank you! __________________ Experience is a cruel teacher. It gives the exam first, then the lesson.

02-06-2023, 08:07 AM	#4
BTERRY29 Member Join Date: Mar 2021 Location: San Diego, CA Posts: 49	Re: Transmission Main Shaft Spacer Ring What year? I believe some early transmissions didn’t have it. Tom Endy has a good article explaining the differences. Mine did not have one. When I tried to add prior to discovering this it would cause the trans to bind when reassembled.

02-06-2023, 01:49 PM	#5
31 Woody Senior Member Join Date: May 2013 Location: Lake Forest, California Posts: 239	Re: Transmission Main Shaft Spacer Ring BTerry—Interesting note, this car is a March 1930 build, if we are assuming it has the original transmission. I do know that it does NOT have the brass thrust washer as the early transmissions had, so I was figuring it was either original or at least not an early transmission. Any idea where to get the Tom Endy article on this? __________________ Experience is a cruel teacher. It gives the exam first, then the lesson.

02-06-2023, 07:47 PM	#7
31 Woody Senior Member Join Date: May 2013 Location: Lake Forest, California Posts: 239	Re: Transmission Main Shaft Spacer Ring Thank you Tom! It appears the spacer is needed if the splines go all the way on the shaft to the reduced area where the bearing rides. If the splines stop short of the bearing race, and there is a short gap no spacer is required. I enjoyed reading your well documented article—thanks again! Update: and after inspecting, I need to get the spacer. __________________ Experience is a cruel teacher. It gives the exam first, then the lesson. Last edited by 31 Woody; 02-06-2023 at 09:07 PM. Reason: Update

02-12-2023, 09:11 PM	#8
31 Woody Senior Member Join Date: May 2013 Location: Lake Forest, California Posts: 239	Re: Transmission Main Shaft Spacer Ring I bought and installed the spacer, then…locked up! I took it apart and removed the spacer, it works again. Figures… __________________ Experience is a cruel teacher. It gives the exam first, then the lesson.

02-13-2023, 05:25 PM	#10
bobbader Senior Member Join Date: May 2010 Location: Huntington, NY Posts: 271	Re: Transmission Main Shaft Spacer Ring Some main shafts have a spacer "built in". It is actually more of a precision "collar" that may actually be a separate piece or an "extension" on the shaft in front of the splined area. Don't forget, these cars are 90+ years old and previous to the production of "Repro" parts that have been around for 50+ years, aftermarket gears and shafts were available from sources other than Ford dealers. You appear to have the main shaft with this "built in" spacer.