The Ford Barn

rooster31 · 03-31-2013, 07:40 PM

i have three model a banjo rear ends. two the torque tube tapers staring at the rear flange all the way to the speedo drive. the other one is the same size from the flange over 3/4 of the way down the tube and tapers at the end near the speedo drive. whats the diffrence? years? thanks

wrndln · 03-31-2013, 08:21 PM

Rooster31,
Believe it or not, Dudley and I are trying to figure out the torque tubes used on model A's. We have questions about them as described in the judging guidelines. The judging guidelines state that the tapered style was used from early 28 to the end of production. I have 3 of the fully tapered torque tubes along with two of the more common style. The other style that you describe were used along with the fully tapered style. There were three styles of the other type (short taper on the bell end of the TT), with minor differences between them. If you have the judging guidelines, page 4-11 describes the various driveshafts.
Rusty

d.j. moordigian · 04-01-2013, 10:34 AM

Rooster31,
You'll just about need the Judging Standards too decipher the torque tubes,
too know exactly which one you have( the one that is not 100% tapered).
Question,...above the speedo mount(top of torque tube), do you have any
numbers stamped on it??

Rusty,...have you checked yours?

Thanks, Dudley

Joe K · 04-01-2013, 05:33 PM

Marco and I had lengthy discussion regarding the taper on the torque tubes over at the "other" Model A Ford site.

My 4-11 rear end which was original to the March 29 CC truck has the taper over the entire length.

A Mid 30s Roadster from which I got the parts left over had the taper on only the first third, with the rest of the tube the same diameter all the way to the flange.

A torque tube of source unknown bought at the Amherst Antique Auto Flea Market has the 1/3 taper like the one described above.

I was kind of the opinion that the tapered tube was first used on the relatively early cars, and then Ford decided to use up the parts on the trucks (a common practice) and a lot of trucks came with the 4-11 rear so a long taper MIGHT be an indication of 4-11 rear EXCEPT for those early ones...

And this is where I left the discussion with Marco as neither of us knew enough by ourselves to answer the question.

May be one of those unanswered in life - they show up now and again.

Joe K

wrndln · 04-01-2013, 07:41 PM

Dudley,
I checked the 2 regular (not the fully tapered type) and there was just a single stamp on each one, not a multi-digit number of any kind. I didn't check the fully tapered TT.
Rusty Nelson

rooster31 · 04-03-2013, 01:53 PM

Sponsored Links (Register now to hide all advertisements)

thanks i will check my numbers

rooster31 · 04-04-2013, 07:34 PM

hard to read my numbers on my tube. today i saw a 1928 ar and it has the tube that dosent taper till the end?

03-31-2013, 07:40 PM	#1
rooster31 Member Join Date: Apr 2011 Location: DOUGLASVILLE, GA Posts: 57	torque tube i have three model a banjo rear ends. two the torque tube tapers staring at the rear flange all the way to the speedo drive. the other one is the same size from the flange over 3/4 of the way down the tube and tapers at the end near the speedo drive. whats the diffrence? years? thanks

03-31-2013, 08:21 PM	#2
wrndln Senior Member Join Date: May 2010 Location: Lakeville, MN Posts: 5,159	Re: torque tube Rooster31, Believe it or not, Dudley and I are trying to figure out the torque tubes used on model A's. We have questions about them as described in the judging guidelines. The judging guidelines state that the tapered style was used from early 28 to the end of production. I have 3 of the fully tapered torque tubes along with two of the more common style. The other style that you describe were used along with the fully tapered style. There were three styles of the other type (short taper on the bell end of the TT), with minor differences between them. If you have the judging guidelines, page 4-11 describes the various driveshafts. Rusty Last edited by wrndln; 04-01-2013 at 07:38 PM.

04-01-2013, 10:34 AM	#3
d.j. moordigian Senior Member Join Date: May 2010 Location: Fresno, Ca. Posts: 3,636	Re: torque tube Rooster31, You'll just about need the Judging Standards too decipher the torque tubes, too know exactly which one you have( the one that is not 100% tapered). Question,...above the speedo mount(top of torque tube), do you have any numbers stamped on it?? Rusty,...have you checked yours? Thanks, Dudley

04-01-2013, 05:33 PM	#4
Joe K Senior Member Join Date: Jul 2010 Location: Cow Hampshire Posts: 4,188	Re: torque tube Marco and I had lengthy discussion regarding the taper on the torque tubes over at the "other" Model A Ford site. My 4-11 rear end which was original to the March 29 CC truck has the taper over the entire length. A Mid 30s Roadster from which I got the parts left over had the taper on only the first third, with the rest of the tube the same diameter all the way to the flange. A torque tube of source unknown bought at the Amherst Antique Auto Flea Market has the 1/3 taper like the one described above. I was kind of the opinion that the tapered tube was first used on the relatively early cars, and then Ford decided to use up the parts on the trucks (a common practice) and a lot of trucks came with the 4-11 rear so a long taper MIGHT be an indication of 4-11 rear EXCEPT for those early ones... And this is where I left the discussion with Marco as neither of us knew enough by ourselves to answer the question. May be one of those unanswered in life - they show up now and again. Joe K __________________ Shudda kept the horse.

04-01-2013, 07:41 PM	#5
wrndln Senior Member Join Date: May 2010 Location: Lakeville, MN Posts: 5,159	Re: torque tube Dudley, I checked the 2 regular (not the fully tapered type) and there was just a single stamp on each one, not a multi-digit number of any kind. I didn't check the fully tapered TT. Rusty Nelson

04-03-2013, 01:53 PM	#6
rooster31 Member Join Date: Apr 2011 Location: DOUGLASVILLE, GA Posts: 57	Re: torque tube Sponsored Links (Register now to hide all advertisements) thanks i will check my numbers

04-04-2013, 07:34 PM	#7
rooster31 Member Join Date: Apr 2011 Location: DOUGLASVILLE, GA Posts: 57	Re: torque tube hard to read my numbers on my tube. today i saw a 1928 ar and it has the tube that dosent taper till the end?