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Old 06-08-2020, 12:59 PM   #15
CarolinaHD
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Join Date: Aug 2017
Location: Cabarrus
Posts: 406
Re: Bosch Hydromax brake booster info

Yes it did along with my inline proportioning valve. The rear brakes no longer lock up but the master cylinder did NOT fit. They had the wrong picture listed and it has 2 mounting holes to the booster instead of 4.
I found a website with various brake calculations and formulas and was able to determine that going from a 1.5" to 2" master cylinder bore reduces the pedal travel by ~80%. So 2" of pedal travel is reduced to less than 1/2", no good.

My next step is to swap in the extra master cylinder with a 1.75" bore. It came from the earlier hydromax style like Richard has so hopefully it will fit! I'm down in florida for the next 2 weeks so it will be awhile before I can update.
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Alex
1967 C50 292ci Lumber truck
1967 C50 292ci Dump truck
1967 C60 366ci Fire truck

Last edited by CarolinaHD; 06-08-2020 at 01:14 PM.
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