Re: {Chrysler 300} Dual master

[John Grady <jkg@xxxxxxxxxxxxxxxxx>]

i made a new top for the common big chrysler dual , have also used dart but  volume stored is on small side if an  issue  

Anyone ever have a failure on a dual ? I’m not sure Id call it braking , have to pump , pedal almost hits floor . Not all its racked up to be 

Why I like the big one 

The cover was 1/4 flat aluminum , held on by what looks like a big muffler U bolt goes under master .

cover was machined with two wings sticking out to receive U bolt , think it was 3/16”

You give up the domes. many masters do not have them anyway 

Worked ok …

easy to open , relatively

J  

 

On Aug 3, 2025, at 2:55 PM, RICK AND DEBBIE CLAPHAM <rixpac@xxxxxxx> wrote:



Yes. I used the late 60s early 70s short A body master cylinder 300 F and G. Added proportioning valve from same. Takes a few line adapters.  Tubing bending tool is helpful. Always double flair brake lines. Rick

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From: 'John Gaynor' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Sent: Sunday, August 3, 2025 11:16:09 AM
To: Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} Dual master

 

Howdy 

Has anyone installed a dual master cylinder without doing a disc brake conversion?

I enjoy the originality of the drum brakes, however having the safety of a dual master would be comforting. 

Appreciate your thoughts. 

John

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