AA four speed transmission parts

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
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1955cj-5
Posts: 38
Joined: May 23rd, 2015, 12:11 pm
Body Type: ccpu
Model Year: 1929
Location: Boise, idaho

AA four speed transmission parts

Post by 1955cj-5 »

This transmission is from a '31, at least the tower has a 2-16-31 casting date......I've found the bearings gaskets etc, and most of the other parts, but I can't find a replacement counter-gear shaft. Are they just not available or are they the same as the A 3-speed transmission? I'm not rebuilding it yet, just looking at options...

Randy
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1955cj-5
Posts: 38
Joined: May 23rd, 2015, 12:11 pm
Body Type: ccpu
Model Year: 1929
Location: Boise, idaho

Re: AA four speed transmission parts

Post by 1955cj-5 »

Sacramento Vintage lists a countershaft....AA-7111
RustydoubleA
Posts: 108
Joined: June 18th, 2014, 10:22 pm
Body Type: express
Model Year: 1930
Location: N. Calif.

Re: AA four speed transmission parts

Post by RustydoubleA »

All of the hard parts sold in the parts houses are NOS. The countershafts have been all sold for years now. Every $10 4 speed transmission that I see at swap meets I buy for the countershaft, some have good ones. Sacramento Vintage stocks only about 60%of the items listed in their catalog, the owners son is the purchasing person and does not like stock Model A Fords but he does like and stocks hot rod parts! Steve.
1955cj-5
Posts: 38
Joined: May 23rd, 2015, 12:11 pm
Body Type: ccpu
Model Year: 1929
Location: Boise, idaho

Re: AA four speed transmission parts

Post by 1955cj-5 »

Thanks Steve,

I called and though it's in their catalog they do not stock it...they are just not available new...VanPelt has a used one, but I'm not sure from what year transmission and I don't know if all 29-50 transmissions used the same shaft.

Plan now is to replace the bearings. I found that my pilot bearing was nearly frozen so I'm sure that accounted for the difficult shifting and some of the noise....Randy
Ulysses6
Posts: 36
Joined: May 29th, 2013, 6:05 pm
Body Type: 89A
Model Year: 1929

Re: AA four speed transmission parts

Post by Ulysses6 »

I do not see an AA 7111 listed, but BB 7111 is listed at 9.16" for 29-34 and replaced by 51 7111 at 9.44" for 35-47.
1955cj-5
Posts: 38
Joined: May 23rd, 2015, 12:11 pm
Body Type: ccpu
Model Year: 1929
Location: Boise, idaho

Re: AA four speed transmission parts

Post by 1955cj-5 »

Yes that is right... I had no luck searching for the AA-7111 so started looking for BB transmission parts.....

http://www.vanpeltsales.com/FH_web/tran ... 4speed.htm
1955cj-5
Posts: 38
Joined: May 23rd, 2015, 12:11 pm
Body Type: ccpu
Model Year: 1929
Location: Boise, idaho

Re: AA four speed transmission parts

Post by 1955cj-5 »

I was able to replace the input shaft bearing and the mainshaft pilot bearing....I was surprised at how well it went...the old bearing came off easily and the new one went on with a little tapping on the inner race with a brass hammer....

You can see that the mainshaft bearing was about shot...probably the source of my growling on deceleration....

Haven't found a gasket yet..!
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