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Old 08-22-2009, 01:25 PM
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brake boosters

OK I have 2 questions. First one is: Will a Toyota brake booster be big enough to push a Chevy master cylinder? And the second one is: Is there anything that needs to be rebuild in a hydraulic assist from a Chevy?

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Old 08-23-2009, 11:28 AM
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I would really appreciate some feed back thank you
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Old 08-24-2009, 12:04 AM
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anybody out there
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Old 08-24-2009, 12:50 AM
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Your question is very vague, so no one answered. Your foot pushes the pedal which pushes on the master cylinder....the booster only assists your foot effort. So yes, a toyota booster will assist and decrease the pedal effort...but no one can tell you how much assist you will get unless we know what the diameter of the booster is, and the "chevy" master cylinder it has to assist in pushing...chevy makes alot of cars and trucks, all with master cylinders, all with different requirement...Installing a Toyota Corolla booster on a C-60 chevy truck would probably be a waste of time....put one on a Chevy Vega and you'd probably be ok....

As to your second question...if your "chevy" hydraulic assist is all wore out, it all needs to be rebuilt, or replaced....maybe if we knew what parts you were talking about, we could answer you better..."Hydraulic assist" is a term typically associated with steering, not brakes.

Some specifics would be helpful.

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Old 08-24-2009, 03:56 PM
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OK well thanks for the reply so the booster is a stock Toyota ('85 4x4 pickup) and the master cylinder would be off a '83 3/4 ton 4x4 Chevy p/u. As for the hydro assist I'm talking about what seals or whatever else would make one not work or if there is any such parts that would go bad inside the hydro assist. the Toyota has a 350/th350/tc205 and 3/4 ton Chevy axles and I don't think that the toyota master cylinder is working very well so I want to fab a bracket to fit the Chevy master cylinder to the Toyota booster. The hydro assist is for my tow rig an '83 Chevy 3/4 ton p/u.
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Old 08-24-2009, 04:19 PM
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The Vacuum booster should work. Remember, adding large heavy tires with stock size rotors/drums and booster will decrease brake effectiveness.
The HydroBoost unit has many seals that can leak, trash can cause problems as well. > http://cgi.ebay.com/ebaymotors/Hydro...Q5fAccessories
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Old 08-24-2009, 04:59 PM
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Cool thanks that is very helpful info I will work on making that fit together
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