Identify brake drum Harley? - AMCA Forum

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jorrow

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#1

Identify brake drum Harley?

05-14-2018, 02:00 PM

Ok so the drum on the left in question looks like a mechanical big twin but is quite a bit deeper. Other than that they seem identical. drum.JPG drum2.JPG
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govmule84

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#2

05-14-2018, 02:42 PM

I'm no expert, but ain't that a juice drum?

Last edited by govmule84; 05-14-2018, 02:46 PM.
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jorrow

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#3

05-14-2018, 03:47 PM

I do not believe so, most hydraulic were cast iron, these are both steel.
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wideglide38

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#4

05-14-2018, 04:03 PM

I thought the same as govmule. The deeper drum would have room for the wheel cylinder.

William Edwards, AMCA #10035

Attend the 2019 Southern National Meet at Denton Farmpark, NC, 17-18 May 2019
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Rubone

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#5

05-14-2018, 06:02 PM

Early '58 drum for juice brakes is stamped steel. Cast drums started in mid '58 due to drum expansion issues.

Robbie Knight Amca #2736
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jorrow

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#6

05-14-2018, 06:10 PM

One more pic. I knew about '58 but wasn't sure if this was it.drum3.jpg
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jorrow

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#7

05-14-2018, 06:12 PM

Thanks for every ones help.
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