The Ford Barn

bullrunmotor · 12-31-2021, 08:26 AM

Can anyone identify year range of this unit based on the photos enclosed. I believe the ears where the radius arms mount may determine the years. Been in storage for many years-previous owner(deceased) did have a 39 Coupe at one time. It is strictly a vacuum unit-no electrical switch. Any help appreciated.

hotcoupe · 12-31-2021, 08:39 AM

Based on what appears to be a mounting stud for a track bar, i would say it is for a '42-'48.
Tom

oldskool · 12-31-2021, 08:39 AM

im thinking 1946-48 due to sway bar stud im not an expert on columbia rears

hotcoupe · 12-31-2021, 08:42 AM

I think oldskool has the answer, '46-'48.
Tom

Bored&Stroked · 12-31-2021, 08:43 AM

Hopefully you have access to the rest of the major components that go with it on the inside. There appears to be a lot of rust in the unit, so beware!

Terry,OH · 12-31-2021, 08:52 AM

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The cast iron housing should have a brass tag on the flange for the bolts clean it off and it will tell you the years.

Ken/Alabama · 12-31-2021, 09:03 AM

46-48

Bursonaw · 12-31-2021, 09:05 AM

If you are looking for a certain year? All Columbia internals are interchangeable with all years. The only difference between the years are the axle housings and axles lengths. You can use any year Columbia by modifying the axle housing. Columbia Two Speed Parts http://www.columbiatwospeedparts.com can do the modification for you. You will need a right axle housing for the year you need and a Columbia axle housing. They cut the axle housings and weld them together and it will look like an OEM part.

Sent from my iPad using Tapatalk

cdan34 · 12-31-2021, 10:07 AM

The spring perch holder looks '41, not sure.

deuce_roadster · 12-31-2021, 11:37 AM

If you wanted to use it in an earlier car, say 1940, you could get 1940 axle housings and axles (verifyiing the 4 spider gears have the same number of teeth) and it would work if you have all the rest of the parts.

rotorwrench · 12-31-2021, 12:07 PM

The spring hanger does look the the double barrel 1941. The housing length will tell if there is no tag. The 42/48 are longer. The 41 is the same length as earlier Fords but it has the different spring hangers.

38 coupe · 12-31-2021, 03:42 PM

Late 46 through 48. The housing has the larger diameter after the shift section, that then necks down out towards the end of the tube.
Also, while internals for 35-48 can be interchanged, some of the parts must be swapped as assemblies. The shifter unit pictured has the late higher outer tooth count on the A-32 (part of the synchro clutch).

Ken/Alabama · 12-31-2021, 04:15 PM

The 41 has a spike hanging from the spring eye. Only year for that.

petehoovie · 12-31-2021, 04:21 PM

Quote:

Originally Posted by Ken/Alabama

The 41 has a spike hanging from the spring eye. Only year for that.

38 coupe · 12-31-2021, 07:22 PM

41 does have that spike, but the pictured housing doesn't.
The pictured housing has the stud for the sway bar, 41 doesn't.

12-31-2021, 08:39 AM	#2
hotcoupe Senior Member Join Date: May 2010 Location: imperial,mo Posts: 694	Re: Help in identifying a Columbia 2 speed rear Based on what appears to be a mounting stud for a track bar, i would say it is for a '42-'48. Tom

12-31-2021, 08:39 AM	#3
oldskool Senior Member Join Date: May 2010 Location: shirley ny Posts: 992	Re: Help in identifying a Columbia 2 speed rear im thinking 1946-48 due to sway bar stud im not an expert on columbia rears

12-31-2021, 08:42 AM	#4
hotcoupe Senior Member Join Date: May 2010 Location: imperial,mo Posts: 694	Re: Help in identifying a Columbia 2 speed rear I think oldskool has the answer, '46-'48. Tom

12-31-2021, 08:43 AM	#5
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,062	Re: Help in identifying a Columbia 2 speed rear Hopefully you have access to the rest of the major components that go with it on the inside. There appears to be a lot of rust in the unit, so beware!

12-31-2021, 09:03 AM	#7
Ken/Alabama Senior Member Join Date: May 2010 Location: Alabama Posts: 3,257	Re: Help in identifying a Columbia 2 speed rear 46-48

12-31-2021, 09:05 AM	#8
Bursonaw Senior Member Join Date: Apr 2013 Location: Virginia Beach, VA Posts: 345	Help in identifying a Columbia 2 speed rear If you are looking for a certain year? All Columbia internals are interchangeable with all years. The only difference between the years are the axle housings and axles lengths. You can use any year Columbia by modifying the axle housing. Columbia Two Speed Parts http://www.columbiatwospeedparts.com can do the modification for you. You will need a right axle housing for the year you need and a Columbia axle housing. They cut the axle housings and weld them together and it will look like an OEM part. Sent from my iPad using Tapatalk

12-31-2021, 10:07 AM	#9
cdan34 Senior Member Join Date: May 2010 Location: Mill Valley, Calif. Posts: 120	Re: Help in identifying a Columbia 2 speed rear The spring perch holder looks '41, not sure.

12-31-2021, 11:37 AM	#10
deuce_roadster Senior Member Join Date: Oct 2011 Location: Shelton, WA Posts: 3,799	Re: Help in identifying a Columbia 2 speed rear If you wanted to use it in an earlier car, say 1940, you could get 1940 axle housings and axles (verifyiing the 4 spider gears have the same number of teeth) and it would work if you have all the rest of the parts.

12-31-2021, 12:07 PM	#11
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,425	Re: Help in identifying a Columbia 2 speed rear The spring hanger does look the the double barrel 1941. The housing length will tell if there is no tag. The 42/48 are longer. The 41 is the same length as earlier Fords but it has the different spring hangers.

12-31-2021, 03:42 PM	#12
38 coupe Senior Member Join Date: May 2010 Location: South Texas Posts: 1,631	Re: Help in identifying a Columbia 2 speed rear Late 46 through 48. The housing has the larger diameter after the shift section, that then necks down out towards the end of the tube. Also, while internals for 35-48 can be interchanged, some of the parts must be swapped as assemblies. The shifter unit pictured has the late higher outer tooth count on the A-32 (part of the synchro clutch).

12-31-2021, 07:22 PM	#15
38 coupe Senior Member Join Date: May 2010 Location: South Texas Posts: 1,631	Re: Help in identifying a Columbia 2 speed rear 41 does have that spike, but the pictured housing doesn't. The pictured housing has the stud for the sway bar, 41 doesn't.