Unsusal Find

C

CJH

Member
I am helping a friend work on his 1930 coupe and found this unusual brake drum / hub. Can anyone identify it?

Chris
 

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Commonly called the Rocky Mountain brake drum. Is it 12" or 11"?

It's cast iron so it doesn't have the brake fade of the steel drums.
 
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I have two (2) original brake drums that look very similar on my Model B front axle that my Uncle used to make a boat trailer in 1932 -- think the drums are 12" inside diameter -- never removed them since 1960 or 54 years ago ............ CRS could be possible after 50 years in many cases.
 
If the inside diameter is arround eleven inches it is a late 31 cast iron drum. If it is 12 inch inside diametyer it is 32 or later.
 
Thank you for the help gentlemen. I do not have the drum here at my place. I will measure it when I see my friend again to do the brake job on his 30 coupe.

Chris
 
I have 3 of them and can tell by the amount of material just passed the 5 spokes that it is an 11" drum. Nice find.
 
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