The Ford Barn

JayJay · 02-04-2023, 09:59 PM

Does anyone know the OD of the lower race of a 2-tooth steering box? I want to make a bearing driver to be sure mine is seated properly, but I don't want to buy a new race (at $27.00+) just to measure it. Or alternatively, if anyone knows the Timken number of that race, let me know and I can look up the OD.

Thanks.

JayJay

John · 02-05-2023, 11:33 AM

It is a Timken 13C, measuring about 1.940" on the O.D.

John

Joe K · 02-05-2023, 11:56 AM

I have successfully used a small 1/8" punch to "walk" it to the seat. One can tell when it is driven by the sound and feel. A driver might be more "automatic" but not necessarily more secure.

A punch is used similarly in the two threaded holes to walk the race out.

Nice thing about the Model A though. There is not ONE way to do anything - possibly not even a "best" way.

Joe K

rotorwrench · 02-05-2023, 01:20 PM

I've used my brass punches to remove them with no problems. As mentioned, just walk it around the periphery to nudge it out a bit at a time.

bobbader · 02-05-2023, 02:15 PM

Just a guess that the outside diameter of the lower race might be pretty close to that of the upper race ................ or at least close enough to make that tool. Again, just a guess.

JayJay · 02-06-2023, 01:02 PM

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Thanks, folks. Turns out that I have a 1-7/16" deep socket that worked fine (OD 1.901"), no muss, no fuss. Hint - if you use a socket as a driver, make sure you have a square edge on the end of the socket. A chamfer (like most sockets have from the factory) lessens the contact surface. In the past I've had to chuck up several sockets in the lathe and face off the chamfer to get good contact (this one had such a minor chamfer that I didn't need to do it).

JayJay

PS - here is a link to the Timken Bearing Dimension catalogue. It contains some good data on bearing fit practices. The bearing cup of the 13C is listed with an OD of 1.938", as John stated.

02-04-2023, 09:59 PM	#1
JayJay Senior Member Join Date: Jan 2020 Location: SF Bay Area Posts: 1,077	2-tooth steering box - lower race Does anyone know the OD of the lower race of a 2-tooth steering box? I want to make a bearing driver to be sure mine is seated properly, but I don't want to buy a new race (at $27.00+) just to measure it. Or alternatively, if anyone knows the Timken number of that race, let me know and I can look up the OD. Thanks. JayJay __________________ JayJay San Francisco Bay Area ------------------------ 1930 Murray Town Sedan 1931 Briggs S/W Town Sedan

02-05-2023, 11:33 AM	#2
John Senior Member Join Date: May 2010 Location: Richmond, VA Posts: 189	Re: 2-tooth steering box - lower race It is a Timken 13C, measuring about 1.940" on the O.D. John

02-05-2023, 11:56 AM	#3
Joe K Senior Member Join Date: Jul 2010 Location: Cow Hampshire Posts: 4,188	Re: 2-tooth steering box - lower race I have successfully used a small 1/8" punch to "walk" it to the seat. One can tell when it is driven by the sound and feel. A driver might be more "automatic" but not necessarily more secure. A punch is used similarly in the two threaded holes to walk the race out. Nice thing about the Model A though. There is not ONE way to do anything - possibly not even a "best" way. Joe K __________________ Shudda kept the horse.

02-05-2023, 01:20 PM	#4
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,436	Re: 2-tooth steering box - lower race I've used my brass punches to remove them with no problems. As mentioned, just walk it around the periphery to nudge it out a bit at a time.

02-05-2023, 02:15 PM	#5
bobbader Senior Member Join Date: May 2010 Location: Huntington, NY Posts: 271	Re: 2-tooth steering box - lower race Just a guess that the outside diameter of the lower race might be pretty close to that of the upper race ................ or at least close enough to make that tool. Again, just a guess.

02-06-2023, 01:02 PM	#6
JayJay Senior Member Join Date: Jan 2020 Location: SF Bay Area Posts: 1,077	Re: 2-tooth steering box - lower race Sponsored Links (Register now to hide all advertisements) Thanks, folks. Turns out that I have a 1-7/16" deep socket that worked fine (OD 1.901"), no muss, no fuss. Hint - if you use a socket as a driver, make sure you have a square edge on the end of the socket. A chamfer (like most sockets have from the factory) lessens the contact surface. In the past I've had to chuck up several sockets in the lathe and face off the chamfer to get good contact (this one had such a minor chamfer that I didn't need to do it). JayJay PS - here is a link to the Timken Bearing Dimension catalogue. It contains some good data on bearing fit practices. The bearing cup of the 13C is listed with an OD of 1.938", as John stated. __________________ JayJay San Francisco Bay Area ------------------------ 1930 Murray Town Sedan 1931 Briggs S/W Town Sedan Last edited by JayJay; 02-06-2023 at 01:07 PM.