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#1 |
Registered User
Join Date: Mar 2012
Location: Gallipolis, Ohio
Posts: 296
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Brake Pedal Assembly
Is there any difference in a manual and power brake assembly? If so what is it? I switched my truck to power brakes and got the booster bracket from a forum member but the connecting rod is about an inch from the peadal. I can get it connected but it puts my pedal to close to the floor.
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#2 |
Registered User
![]() Join Date: Feb 2013
Location: Spring Hill, Florida
Posts: 465
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Re: Brake Pedal Assembly
I don't think there is a difference, the push rod should be adjustable so that you can adjust the pedal location. the power brake pedal sits closer to the firewall because the bore in the master is larger and requires less travel to move the same amount of fluid.
double check the service manual for the proper pedal location I think it says how many inches off the firewall it should be.... I'm sure someone else will chime in as well. |
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#3 |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,194
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Re: Brake Pedal Assembly
Normally there is a difference in pedal ratio between manual and power brakes.
The '69 and '70 charts that I have do not have that level of detail, but the 71 and 72 charts show around 6:1 for manual and 3.5:1 for power systems. K
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#4 | |
Registered User
Join Date: Mar 2012
Location: Gallipolis, Ohio
Posts: 296
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Quote:
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#5 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,481
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Re: Brake Pedal Assembly
Quote:
1/2" - 1" from the bump stop. Here is an OLD thread that discusses the problem. http://67-72chevytrucks.com/vboard/s...d.php?t=151551 LockDoc
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#6 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,717
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Re: Brake Pedal Assembly
What he means is the power brake rod connects up higher on the brake pedal than the manual rod. If you are trying to use the same hole on the pedal, that's wrong.
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#7 |
Registered User
Join Date: Mar 2012
Location: Gallipolis, Ohio
Posts: 296
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Re: Brake Pedal Assembly
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#8 |
Registered User
Join Date: Mar 2012
Location: Gallipolis, Ohio
Posts: 296
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Re: Brake Pedal Assembly
The pedal assembly was for an automatic set up also. It just didnt have power brakes originally.
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#9 | |
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![]() Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,846
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Re: Brake Pedal Assembly
Quote:
http://www.mpbrakes.com/techtalk/how...ng-pedal-ratio
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#10 |
Senior Member
![]() Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,276
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Re: Brake Pedal Assembly
I used the stock manual brake/clutch pedal assembly and just added a booster and the correct push rod. I even used the stock manual drum/drum master cylinder, and have not had any issues. Then I removed the clutch pedal from the assembly when I switched to an automatic.
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