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  #1  
Old 06-27-2009
markanddiann markanddiann is offline
79 scout 800 345 auto
 
Join Date: Jan 2009
Posts: 15
79 scout 800 brake help

70 scout 800 on a 79 2 chassis, can i run the master cylinder from the 79 without the booster? i would run everything the same with the prop valve, but im concerned that the master cylinder bore is to large. i will be running 33 12.5's. would i be better off with another master setup with the front disk rear drum unboosted?
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  #2  
Old 06-28-2009
ruderunner1 ruderunner1 is offline
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Join Date: Jan 2004
Location: Hiram Ohio
Posts: 559
Re: 79 scout 800 brake help

Booster/no booster is personal preference and physical strength. If you can push hard enough on the pedal a booster isn't needed. Smaller bore would lessen the needed leg pressure but increases the travel. As for details I'm not sure of the pushrod hookup. Maybe a master from a SII with manual brakes would be different/better.
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Old 06-28-2009
Halfbox P's Avatar
Halfbox P Halfbox P is offline
Just some guy
 
Join Date: Sep 2004
Location: Spokane WA
Posts: 1,977
Re: 79 scout 800 brake help

Get a master cylinder for a SII without power brakes. Trying to stop with the power brake master will require too much force. Rebuilt master cylinders are available for $25-35 at NAPA and Schucks.
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Old 06-28-2009
markanddiann markanddiann is offline
79 scout 800 345 auto
 
Join Date: Jan 2009
Posts: 15
Re: 79 scout 800 brake help

Thanks for the replies, but if i run the manual master from the scout 2 won't i have issues with the front disks? I thought that disc drum un assisted masters had differant pressures. Running and driving is nice but stopping is critical. Just want to get it right the first time. thanks
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  #5  
Old 06-28-2009
Halfbox P's Avatar
Halfbox P Halfbox P is offline
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Join Date: Sep 2004
Location: Spokane WA
Posts: 1,977
Re: 79 scout 800 brake help

You can get a stock SII non-power master for a disk/drum application.
Just ask for one for a 76 or later model.
I know they're available I'm running one on my 76 right now.
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