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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please? [message #327550 is a reply to message #327549] |
Thu, 28 December 2017 22:53 |
powwerjon
Messages: 849 Registered: March 2013
Karma:
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Senior Member |
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Dave,
I have run many combo of brakes over the years. I did have 6 wheel disk which was 80MM on the front and a Harrison setup on the middle bogie which has a 12.5 in Ford disk with the 80MM caliper and a Cad set up with the stock Cad cal with emergency brake option. See these pictures.d I also show the comparison between the Harrison and Cad rotor.
http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
The combo I run now is still the 80MM on the front, Harrison on the middle with 80MM and standard drum brake on the rear with a 15/16 inch slave cylinder and carbon metallic shoes. I will probably go to a 7/8 inch slave on the rear the next time I do a complete service on the brakes.
The majority of the braking is provided by the middle bogie with the rear not locking up. The real difference is that I have gotten the brake pressure back up to about 1200 psi compared to about 900 psi with the p30 master. Pressure means power to stop. The more pressure that you have at the brakes is king. If you have more questions I may answer ask.
J.R. Wright
GMC GreatLakerTech Editor
78 Buskirk 30' Stretch
75 Avion Under Reconstruction
Michigan
> On Dec 28, 2017, at 9:33 PM, David Shafer wrote:
>
> powwerjon,
>
> That is a nice looking setup up top. What is your choice at the wheels? ...six disks or less? If you are running disk brakes at the rear, what size
> rotors?
> Thanks,
> Dave
> --
> 1977 26 foot 403
>
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Ford A426C brake vacuum pump, your opinion please?
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
By: GMC.LES on Thu, 28 December 2017 09:27
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
By: jimk on Thu, 28 December 2017 23:27
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
By: k2gkk on Fri, 29 December 2017 09:55
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
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Re: Ford A426C brake vacuum pump, your opinion please?
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
By: dshafer on Thu, 28 December 2017 22:33
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
By: USAussie on Thu, 28 December 2017 23:19
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
By: Kosier on Fri, 29 December 2017 10:47
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
By: USAussie on Fri, 29 December 2017 14:14
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Re: Ford A426C brake vacuum pump, your opinion please?
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Re: Ford A426C brake vacuum pump, your opinion please?
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
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Re: Ford A426C brake vacuum pump, your opinion please?
By: RF_Burns on Sat, 30 December 2017 08:21
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Re: [GMCnet] Ford A426C brake vacuum pump, your opinion please?
By: USAussie on Sat, 30 December 2017 14:44
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