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Old 09-20-2021, 11:10 PM   #1
ss3011
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Default Re: Power Brakes and Vacuum

Remove the booster and switch to a manual master cylinder and save all the weight .
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Old 09-21-2021, 10:22 AM   #2
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Default Re: Power Brakes and Vacuum

jegs has a electric pump for brake boosters
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Old 09-21-2021, 10:22 PM   #3
SSDiv6
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Default Re: Power Brakes and Vacuum

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Originally Posted by ss3011 View Post
Remove the booster and switch to a manual master cylinder and save all the weight .
Like SS3011 said, get rid of the booster and install the 9C1 police car brake master cylinder with the 1-1/4" bore size.

RockAuto has brand new master cylinders with the reservoir, Wagner P/N MC131285 on sale for $34.00.

Also, search for a 1993 to 1996, 9C1 police car brake pedal assembly with the pushrod. They have a different brake pedal pushrod lever point.
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Old 09-22-2021, 04:51 PM   #4
Dan Fahey
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Default Re: Power Brakes and Vacuum

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Originally Posted by SSDiv6 View Post
Like SS3011 said, get rid of the booster and install the 9C1 police car brake master cylinder with the 1-1/4" bore size.

RockAuto has brand new master cylinders with the reservoir, Wagner P/N MC131285 on sale for $34.00.

Also, search for a 1993 to 1996, 9C1 police car brake pedal assembly with the pushrod. They have a different brake pedal pushrod lever point.
Does that work well with Disk Brakes?

Got this one in today
GM Genuine Parts 20804130 Power Brake Booster Auxiliary Pump Assembly
Have to figure how to mount it and get a Male Connector.

Dan

Last edited by Dan Fahey; 09-22-2021 at 04:57 PM.
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Old 09-22-2021, 06:15 PM   #5
Tex013
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Default Re: Power Brakes and Vacuum

here is another pressure switch
https://www.amazon.com/dp/B078T5NL4S/ref

This is similar/same as what they use in the COMP and similar vacuum pumps If you want switched pump operation .

Tex
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Old 09-22-2021, 09:09 PM   #6
Dan Fahey
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Default Re: Power Brakes and Vacuum

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Originally Posted by Tex013 View Post
here is another pressure switch
https://www.amazon.com/dp/B078T5NL4S/ref

This is similar/same as what they use in the COMP and similar vacuum pumps If you want switched pump operation .

Tex
How would this attach?
Directly from the pump to the Booster?

Dan
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Old 09-23-2021, 03:45 PM   #7
Dan Fahey
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Default Re: Power Brakes and Vacuum

Just bought this system from Master Power Brakes
100% complete and simple.
Well except finding right place to mount.

www.mpbrakes.com
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Old 09-26-2021, 05:47 PM   #8
Tex013
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Default Re: Power Brakes and Vacuum

Dan ,
switch goes in booster vacuum hose between pump/booster.
The kit you bought is just an easier package .
Good luck

Tex
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Old 09-22-2021, 06:51 PM   #9
SSDiv6
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Default Re: Power Brakes and Vacuum

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Originally Posted by Dan Fahey View Post
Does that work well with Disk Brakes?

Got this one in today
GM Genuine Parts 20804130 Power Brake Booster Auxiliary Pump Assembly
Have to figure how to mount it and get a Male Connector.

Dan
Yes it does work with both the OEM and aftermarket 4-wheel disc brakes.

The same pump is also used in Volvo's, Subaru's and other car models. The mount bracket for the Auxiliary Pump is GM P/N 25920516.
You can get the connector either at the dealership or NAPA.

This is an install video.
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