Brake drums

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
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David R.
Posts: 160
Joined: August 17th, 2019, 1:52 pm
Body Type: Chassis
Model Year: 1930
Location: WV

Brake drums

Post by David R. » March 20th, 2020, 7:16 am

I read somewhere that the pressed steel drums for the AA shouldn’t be turned. Is that so? What do you do? Just find the best ones you can an use them as they are?

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tiredtruckrestorer
Posts: 322
Joined: April 20th, 2003, 7:09 pm
Model Year: 1931
Location: Orwigsburg, PA

Re: Brake drums

Post by tiredtruckrestorer » March 20th, 2020, 5:10 pm

The pressed steel brake drums were ground true on brake drum grinding machines. I purchased a old truck brake drum grinding machine several years ago and did some AA drums. Unfortunately after the correct size grinding stones were used up, I couldn't find any more that were the right size. Often the steel AA drums I did were egg-shaped and it took some grinding to true them up again. I have found some cast drums with AA parts numbers. I don't know if they were a later replacement cast drum from Ford or if they were introduced in late '31 like ones for the smaller A's were.

Just a note, in the day, Ford offer new drums installed on exchange hubs through the dealers. Grinding drums were a aftermarket alternative of servicing them.

Keith

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Chris Haynes
Posts: 2120
Joined: September 7th, 2003, 5:18 pm
Body Type: 82A
Model Year: 1930
Location: North Hills, CA/ Pine Grove, CA

Re: Brake drums

Post by Chris Haynes » March 21st, 2020, 5:52 pm

'32/'33 cast iron drums fit.

David R.
Posts: 160
Joined: August 17th, 2019, 1:52 pm
Body Type: Chassis
Model Year: 1930
Location: WV

Re: Brake drums

Post by David R. » March 22nd, 2020, 11:33 am

Chris Haynes wrote:
March 21st, 2020, 5:52 pm
'32/'33 cast iron drums fit.
Are they any easier to find?

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Chris Haynes
Posts: 2120
Joined: September 7th, 2003, 5:18 pm
Body Type: 82A
Model Year: 1930
Location: North Hills, CA/ Pine Grove, CA

Re: Brake drums

Post by Chris Haynes » March 22nd, 2020, 2:27 pm

David R. wrote:
March 22nd, 2020, 11:33 am
[Are they any easier to find?
Actually I come across a lot of '32/'33 stripped trucks that still have the drums on them. All the rodders want is the sheet metal.

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