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  Mustangsandmore Forum Archive
  '69 to '73 -- The Musclecar Mustang
  Boss 302 Chassis book

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Author Topic:   Boss 302 Chassis book

Posts: 1421
From: Charlotte NC usa
Registered: Apr 2001

posted 05-16-2001 05:30 PM     Click Here to See the Profile for Mpcoluv        Reply w/Quote
Do any of you guys know what version of '69 truck the master cylinder
C9TZ2140-F came in? F-250 w/manual drum brakes?
This is listed as the required 4-wheel disk brake master cylinder for the Trans-Am Boss 302 mustangs


Posts: 48752
From: Saco, Maine
Registered: May 99

posted 05-16-2001 06:51 PM     Click Here to See the Profile for SteveLaRiviere        Reply w/Quote
I've heard that mod results in LOTS of pedal effort needed.

'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Loc
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC {Wife's car...}
All Fords since 1977

richard bohm

Posts: 373
From: tucson,az-luray,va
Registered: May 2001

posted 05-19-2001 05:08 AM     Click Here to See the Profile for richard bohm        Reply w/Quote
yes it does. the larger the m/cyl bore the more fluid you push and the higher the pedal pressure needed. the smaller the bore the less fluid pushed and the lower the pedal pressure needed. if you use this m/cyl you want to use power brakes as well. especially if this a street car. also remember that if you use the m/cyl with disk brakes you want to remove the residual check valve that goes to the disk brakes. keep the valve for drums.

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