The Ford Barn

1955cj5 · 07-13-2015, 09:03 PM

I may pull my engine soon to check bearings and maybe shim the mains, clean the pan etc etc..

I thought that I'd also change the clutch disc, set the pressure plate, and replace the transmission bearings.

I only see one clutch disc listed in the catalogs, one pilot bearing and one throw-out bearing..they do not differentiate between the A or AA..the AA is not mentioned...

Anyone know? I posted over at the aa forum also...

Looking for an exploded drawing of the AA 4-speed too.....

Changing back to a three speed is looking better and better!

Randy

Bob C · 07-13-2015, 09:43 PM

Just use the A parts, the AA clutch disc was only 1/2" wider I think.

Bob

1955cj5 · 07-13-2015, 09:50 PM

Thanks Bob, that is perfect....

Sacramento Vintage even uses the Ford part numbers....and they show a countershaft which no one else mentions

Now to tally up the damages and see if it is doable!

Randy

Drive Shaft Dave · 07-13-2015, 11:19 PM

Back in the day, AA pressure plate's had higher spring pressures, but the disk was the same.

Tom Wesenberg · 07-14-2015, 05:38 AM

If it was mine I'd switch back to the 3 speed. It will be a lot lighter, cheaper and easier to do repairs, and you'll even gain a little speed due to less weight. 4 speeds are a good tranny for plowing or parades.

Rowdy · 07-14-2015, 11:40 AM

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The heavier spring was for the multiple disc clutch when trucks used the same 3 speed as the cars. On trucks with the later 4 speed the clutch disc and pressure plate were 9 1/2". The car used a 9". Rod

colin1928 · 07-15-2015, 03:20 AM

I have only ever seen 2 AA clutch still attached to flywheels age unknown and both were solid disc no dampers were they factory or replacement disc ?

Juggler · 07-15-2015, 03:42 AM

Rowdy · 07-15-2015, 03:53 AM

I sold a NOS AA clutch disc a couple of years ago it had the BB prefix and had a spring center. Have several used discs also, but would have to look and see if any were the spring center type. Rod

RonC · 07-15-2015, 06:01 AM

Try www.fortwayneclutch.com they rebuild plates

1955cj5 · 07-27-2015, 05:51 PM

I took my clutch out, along with a few other things...it is a 9 3/4" disc, no springs...here is a picture

07-13-2015, 09:03 PM	#1
1955cj5 Senior Member Join Date: Apr 2015 Location: Boise, Idaho Posts: 1,578	AA Clutch disc?? I may pull my engine soon to check bearings and maybe shim the mains, clean the pan etc etc.. I thought that I'd also change the clutch disc, set the pressure plate, and replace the transmission bearings. I only see one clutch disc listed in the catalogs, one pilot bearing and one throw-out bearing..they do not differentiate between the A or AA..the AA is not mentioned... Anyone know? I posted over at the aa forum also... Looking for an exploded drawing of the AA 4-speed too..... Changing back to a three speed is looking better and better! Randy

07-13-2015, 09:50 PM	#3
1955cj5 Senior Member Join Date: Apr 2015 Location: Boise, Idaho Posts: 1,578	Re: AA Clutch disc?? Thanks Bob, that is perfect.... Sacramento Vintage even uses the Ford part numbers....and they show a countershaft which no one else mentions Now to tally up the damages and see if it is doable! Randy

07-13-2015, 11:19 PM	#4
Drive Shaft Dave Senior Member Join Date: Dec 2011 Location: New hope Minnesota Posts: 742	Re: AA Clutch disc?? Back in the day, AA pressure plate's had higher spring pressures, but the disk was the same.

07-14-2015, 05:38 AM	#5
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: AA Clutch disc?? If it was mine I'd switch back to the 3 speed. It will be a lot lighter, cheaper and easier to do repairs, and you'll even gain a little speed due to less weight. 4 speeds are a good tranny for plowing or parades.

07-14-2015, 11:40 AM	#6
Rowdy BANNED Join Date: May 2010 Location: Gothenburg Nebraska Just off I-80 Posts: 4,893	Re: AA Clutch disc?? Sponsored Links (Register now to hide all advertisements) The heavier spring was for the multiple disc clutch when trucks used the same 3 speed as the cars. On trucks with the later 4 speed the clutch disc and pressure plate were 9 1/2". The car used a 9". Rod __________________ Do the RIGHT thing - Support the H.A.M.B. Alliance!!!!

07-15-2015, 03:20 AM	#7
colin1928 Senior Member Join Date: Mar 2013 Location: Australa Melbourne Posts: 878	Re: AA Clutch disc?? I have only ever seen 2 AA clutch still attached to flywheels age unknown and both were solid disc no dampers were they factory or replacement disc ?

07-15-2015, 03:42 AM	#8
Juggler Senior Member Join Date: Aug 2010 Location: Phoenix AZ/Bath UK Posts: 481	Re: AA Clutch disc??

07-15-2015, 03:53 AM	#9
Rowdy BANNED Join Date: May 2010 Location: Gothenburg Nebraska Just off I-80 Posts: 4,893	Re: AA Clutch disc?? I sold a NOS AA clutch disc a couple of years ago it had the BB prefix and had a spring center. Have several used discs also, but would have to look and see if any were the spring center type. Rod __________________ Do the RIGHT thing - Support the H.A.M.B. Alliance!!!!

07-15-2015, 06:01 AM	#10
RonC Senior Member Join Date: May 2010 Location: Rhode Island Posts: 1,868	Re: AA Clutch disc?? Try www.fortwayneclutch.com they rebuild plates