Front brake operating shaft question

[wrndln]

I bought a front brake operating shaft at a swap meet a couple years ago (top shaft in the picture below). I compared it to the other operating shafts I have and it is longer by 5/8". The standard model A shaft is shown below the shaft I bought at the swap meet. The longer shaft is the same diameter and the head is identical to a regular front shaft. I am wondering what the shaft fits. Is it an AA truck brake shaft? Any help identifying the shaft would be appreciated.
Rusty Nelson

[Roger V]

Like you I bought one many years ago at a swap meet not realizing it was longer. I never checked further but assumed it might be for a AA.

[d.j. moordigian]

Okay,..I looked it up,..cause I don't know AA.

The " A-2076-B and A-2077-B,.."Front brake shaft-RH and LH"". Have A prefix's and not
AA,..BUT the arms and pins are AA. Make sense Rusty?

[Rowdy]

The early 28 shafts were slightly longer. But I did not think it more than 1/8" longer than the later ones. Rod

[d.j. moordigian]

Originally Posted by Rowdy

The early 28 shafts were slightly longer. But I did not think it more than 1/8" longer than the later ones. Rod

Rod,
The PPL, dated 1-1-28 shows the same part numbers as the 7-1-31 PPL.
Which part is longer?....you said the shaft, correct. Then the levers are
a different width?

[Rowdy]

Sponsored Links (Register now to hide all advertisements)

The original shafts from my 28 were longer than the repop which have the B suffix. I posted this on the old Fordbarn, but have deleted the pic's since them. Will dig and see if I still have the original shafts to compare and take new pic's. Rod

[wrndln]

Thanks Rod and Dudley.
Rusty Nelson

[Bob C]

The AA actuators are the same as the A except the AA arms are longer.

Bob

Found this in the green parts book. B2077 shaft 28-33 car and truck 7 15/16"
BB2077 33-34 truck 8.54", 35-37 truck 8.8".

[wrndln]

I just measured from under the head to the end where the lever is riveted on and it is exactly 8". I guess that means it is might be for an AA truck as Bob C's measurement is very close at 7 15/16". Bob is your measurement close to 8" like mine or 7 15/16"? Thanks for the help Bob.
Rusty Nelson

[d.j. moordigian]

Originally Posted by wrndln

I just measured from under the head to the end where the lever is riveted on and it is exactly 8". I guess that means it is might be for an AA truck as Bob C's measurement is very close at 7 15/16". Bob is your measurement close to 8" like mine or 7 15/16"? Thanks for the help Bob.
Rusty Nelson

That's wrong Rusty,...according too the PPL.

[Bob C]

The parts book says the measurements are overall length.
The A and AA shaft are the same.

Bob

[Neil Wilson]

FYI - For the AA:

Through 1929, the front brake operating shaft assembly was the same as the A chassis.

Starting January 1930, the front brake lever (AA-2084) was used. The remainder of the front brake operating shaft assembly was the same as the A chassis.

[wrndln]

The total length is 8 9/16". That is very close to what Bob C posted for a BB2077 33-34 truck at 8.54" long. I suppose I could cut it off to the size of the model A operating shaft and drill a new hole in it for the lever, since I don't have a 33-34 truck. I guess I could also post it on the early V8 with the measurements and see if anyone wants it. It looks like NOS with no wear I can feel or see. Thanks all who posted.
Rusty Nelson

[Rowdy]

DJ, I looked through my used brake parts bin and they are not in there. Likely I sent them to the guy who bought my early 28 brakes as I could not get the repop shafts to work with the tapered housings and the NOS actuator arms I bought from Vince or the arms that I took off originally. Rod

[wrndln]

Thanks, Vince. After Bob C's post and your post, it certainly appears it is a 1933-34 BB truck operating shaft. I don't know how many 33-34 BB trucks there are that need an operating shaft for one side. The shaft appears to be like new.
Rusty Nelson