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  #1  
Old 12-01-2011, 03:26 PM
racemd racemd is offline
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Default Convert to Vacuum Brakes

Thinking about converting to Vac brakes and was wondering about any check engine or brake lights on the dash since the power master will no longer be connected?
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Old 12-01-2011, 04:21 PM
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Lightbulb Re: Convert to Vacuum Brakes

The conversion process is outlined on the site.

http://www.gnttype.org/techarea/brakes/brakespage.html has several articles about it.

The only dash light triggers are (1) the powermaster motor circuit and (2) the pressure switch in the distribution block. As long as the fuse is in place and you have adequate pressure, everything should be fine.

Note that you will need a pedal assembly from a vacuum brake G-body to make things simple.
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Old 12-01-2011, 05:00 PM
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Default Re: Convert to Vacuum Brakes

New Vac Booster ordered 139.00 complete, picked up 5/16 line and clamps today. There have been posts on drilling the existing pedal but I not see any notes on how to measure to redrill the existing pedal. Any idea?
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Old 12-01-2011, 06:40 PM
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Default Re: Convert to Vacuum Brakes

is the pedal I need just from a 86/87 Monte and or Regal or can I go older? Would like to hit the scrap yard in the AM... Thanks.

83 is when the SS came out, maybe 83 to 87 monte or 83 or newer regal non turbo?
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Old 12-01-2011, 07:18 PM
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Default Re: Convert to Vacuum Brakes

looks like these will fit? Comment?
1982-1987 Buick Regal
1982-1988 Chevrolet Monte Carlo
1982-1987 El Camino & 1982-1981 Malibu
1982-1987 GMC Caballero
1982-1988 Oldsmobile Cutlass
1982-1987 Pontiac Grand Prix
1984-1986 Bonneville, 1982-1983 Grand Lemans
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Old 12-02-2011, 08:11 AM
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Lightbulb Re: Convert to Vacuum Brakes

Those all should work. All just G series cars of the era. And there are a lot of them out there.

Drilling the pedal arm is not worth it. And, if you never want to go back to Powermaster, or if you want to sell the PM pedal arm, it is a far better option.
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Old 12-02-2011, 08:27 AM
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Default Re: Convert to Vacuum Brakes

thanks, my new Vac Booster should be in at 7:30am, just about 4 minutes from now... I cant wait to get to drive this one LOL...
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Old 12-02-2011, 06:28 PM
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Default Re: Convert to Vacuum Brakes

Job done, new Vacuum Brake booster from Autozone 128.00, Used 1987 Cutlas brake Pedal 25.00... Brakes to save me and my families life........
PRICELESS
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