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disc brake swap #970025 04/09/11 06:50 PM 04/09/11 06:50 PM
Joined: Nov 2008 Posts: 50 OHIO U.S.A. D DUSTER51 OP member
DUSTER51 OP member D Joined: Nov 2008 Posts: 50 OHIO U.S.A.	I have a 72 duster 340 with 10 inch front drum brakes I replaced them with a factory k.H. disc set up changed the lower ball joints and spindles . do I need to change the master cylinder and proportioning valve or any other parts ?

Re: disc brake swap [Re: DUSTER51] #970026 04/09/11 07:21 PM 04/09/11 07:21 PM
Joined: Jan 2010 Posts: 509 Middle River, MD M Mapandjlp mopar
Mapandjlp mopar M Joined: Jan 2010 Posts: 509 Middle River, MD	I bought a new disc brake master cylinder and used the original drum/drum prop valve when I converted my '70 Challenger from 10" drum to manual discs. It works fine.

Re: disc brake swap [Re: DUSTER51] #970027 04/09/11 07:31 PM 04/09/11 07:31 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: do I need to change the master cylinder and proportioning valve or any other parts ? Stick a drill bit deep into the M/C brass conical seat closest to the firewall (that you hooked to the front discs) & if there's no RPV (it's spongy, you'll feel it) in there you are good. I added 74 A discs/10" rear drums to a '65 dart that had OE 4 wheel 9" drums & kept the OE drum splitter & no probs. (proportioning is OK & no excessive front pad wear). Not the way it is recommended but I was in a hurry & didn't want to mess w reflaring lines at the time so I didn't know what to expect live every 24 hour block of time like it's your last day on earth

Re: disc brake swap [Re: Mapandjlp] #970028 04/10/11 08:58 AM 04/10/11 08:58 AM
Joined: Jan 2003 Posts: 21,065 Niles , Ohio T therocks oh wait.but hey.lets see.oh yeah.
therocks oh wait.but hey.lets see.oh yeah. T Joined: Jan 2003 Posts: 21,065 Niles , Ohio	Just get a master for a 69 or so C body with discs.Ive done several and never any problems.I run one on my 65 B and my kids 62 300.Rocky Chrysler Firepower

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