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Old 01-20-2014, 05:24 PM   #1
TDO
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Question What kind of brake drums are these

These where on my 30 coupe when I bought it, There all one piece, cast iron. I don't believe there typical for Model A so what are they .
Not sure if I did this right, If not I'll try down loading pictures again.
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Old 01-20-2014, 05:32 PM   #2
jkeesey
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Default Re: What kind of brake drums are these

Does the car have mechanical or hydraulic brakes? They are definitely not Model A. I have worked on them in a 36 Ford.
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Old 01-20-2014, 05:34 PM   #3
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Default Re: What kind of brake drums are these

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Originally Posted by jkeesey View Post
Does the car have mechanical or hydraulic brakes? They are definitely not Model A. I have worked on them in a 36 Ford.
They are mechanical
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Old 01-20-2014, 05:39 PM   #4
Keith True
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Default Re: What kind of brake drums are these

If they're 11 inch they are late 31 A.Very nice drums.I have a couple of sets on my cars.Are the rears cast too?
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Old 01-20-2014, 05:39 PM   #5
Charlie Stephens
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Default Re: What kind of brake drums are these

They may be late '31 if they are 11 inches in diameter. They would have been added after the car left the factory and are definitely a better drum. If they are 12 inches in diameter they are '32 to '35 but I can't nail it down any better than that.

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Old 01-20-2014, 05:40 PM   #6
jkeesey
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Default Re: What kind of brake drums are these

Im gonna say they are 34 or 35 assemblies. They most likely just changed the backplates out to update it a little. 99% of the Model A brake parts are not going to fit that set up.
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Old 01-20-2014, 05:41 PM   #7
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Default Re: What kind of brake drums are these

The tape measure will be your guide.
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Old 01-20-2014, 05:45 PM   #8
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Default Re: What kind of brake drums are these

I "think" they're Model A, aren't they the ones thet ur called, "ROCKY MOUNTAIN" drums? Aftermarket????? (5 question marks mean, I "might" not know whut I'm talkin' about?????)
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Old 01-20-2014, 05:48 PM   #9
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Default Re: What kind of brake drums are these

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Originally Posted by BILL WILLIAMSON View Post
I "think" they're Model A, aren't they the ones thet ur called, "ROCKY MOUNTAIN" drums? Aftermarket????? (5 question marks mean, I "might" not know whut I'm talkin' about?????)
Bill W.
Rocky Mountains are for Ts ol' man.
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Old 01-20-2014, 05:57 PM   #10
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Default Re: What kind of brake drums are these

The Judging Standards say they came out in Sept. 31.

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Old 01-20-2014, 05:58 PM   #11
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Default Re: What kind of brake drums are these

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Originally Posted by Charlie Stephens View Post
They may be late '31 if they are 11 inches in diameter. They would have been added after the car left the factory and are definitely a better drum. If they are 12 inches in diameter they are '32 to '35 but I can't nail it down any better than that.

Charlie Stephens
there 11 inch, here's some picture of the backing plate and shoes I am running 16 inch wheels as you can see in my avatar. The rear brakes are not cast iron.
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Old 01-20-2014, 06:06 PM   #12
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Default Re: What kind of brake drums are these

Most likely 35 backing plates w/31 drums. Maybe BCCHOPIT will chime in??
Paul in CT JMO
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Old 01-20-2014, 06:21 PM   #13
Keith True
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Default Re: What kind of brake drums are these

Paul,why do you think they are 35 backing plates? They look like 11 inch A to me.The 32 up brakes are completely different.The actuating lever sticks up on the A,it hangs down on the later ones.The kingpin head sticks ahead of the kingpin on the A,it sticks out behind it on the 32 and up.I collected a bunch of later 12 inch brake stuff years ago,thinking I was going to put some nice 12 inch cast brakes on my A.Not an easy conversion.I still have a bunch of 12 inch brake drums hanging around from that pipe dream.
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Old 01-20-2014, 06:37 PM   #14
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Default Re: What kind of brake drums are these

Keith: Sorry I didn't blow up the pictures. You're probably right. I know the 35's are "basically" bolt on.
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Old 01-20-2014, 07:27 PM   #15
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Default Re: What kind of brake drums are these

Looks like I have late 31's, . I sent my steering arms off for rebuilt ones from A&L. But seeing how our postal service don't know east from west. they went to MO. instead of CT. that was on the 9th of Jan. The tracking # shows they left Hazelwood MO. on the 11th of Jan. that's the last they've been heard of. Hard to tell where there at. Lots of luck trying to talk to some one at the postal service, even though they have a $ 50.00 insurance, Probably can kiss that goodbye to. So while I'm waiting on them, thought I would do some brake work. want to put the brake equalizer ( floater) on the front. tomorrow I'll take it all apart and clean it up and post some more pictures so I know exactly what I have before ordering parts.
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Old 01-20-2014, 08:19 PM   #16
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Default Re: What kind of brake drums are these

They are Rocky Mountain brake drums and if indeed they are 11" they were for a Model A. I would like to add they are very dangerous and should be removed from service immediately!

Send them to me (I will pay shipping of course) and I will properly and safely depose of them.

Talking my old drums off as we speak in WV

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Old 01-20-2014, 08:37 PM   #17
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Default Re: What kind of brake drums are these

They are commonly mis-labeled as "Rocky Mountain Drums!" Those were for T's. What you have are stock LATE 31 drums. They came with cast iron rears.
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Old 01-20-2014, 08:46 PM   #18
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Default Re: What kind of brake drums are these

Quote:
Originally Posted by TDO View Post
These where on my 30 coupe when I bought it, There all one piece, cast iron. I don't believe there typical for Model A so what are they .
Not sure if I did this right, If not I'll try down loading pictures again.
TDO, forget about sending the drums to me I'll just pick them up....don't do anything stupid before I get there

Waiting on the snow in WV
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Old 01-20-2014, 09:09 PM   #19
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Default Re: What kind of brake drums are these

Sweet find. I have been looking for some of these for several months for my coupe.
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Old 01-20-2014, 09:35 PM   #20
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Default Re: What kind of brake drums are these

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Sweet find. I have been looking for some of these for several months for my coupe.
TinCup, I have been looking longer thought I had a couple that were advertised as Model A and I ask them to measure and both times they turned out to be 12" I threw in the towel and ordered the drums from Mel and Randy Gross.

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