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Old 03-08-2003, 12:31 PM
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Arrow Mustang II Booster in a '49 Chevy Question

Where to start? I have a '49 Chevy truck with a Chevy 350 engine and TH 350 trans. It has a Mustang II front end and disk brakes and a Camero rear end with drums. The power booster was bad (Hissed and almost killed the engine every time I hit the brakes). After looking at many parts houses I finally found out that it had a "77 Mustang booster. No one had one so I ordered one and got it this morning. It fit perfect and no more hissing but now I don't have any pedal. I've bled the brakes all the way around, used about a quart of fluid to make sure that everything was flushed out, I had a pretty good pedal before I replaced the booster just no power. I know very little about boosters. Is it possible that even though it is the same on the outside that it is different on the inside? The rod that goes into the master cylender moves about 3/4"
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Ed

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Old 03-08-2003, 07:42 PM
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Is it possible that in '77 Mustang had the option of single or dual master cylinder with two different boosters?
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Old 03-09-2003, 04:47 PM
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Since some one may have been there before you, I would remove the replacement booster and compare the length of the rod coming out of the new booster with the old booster rod. Hope you have already done this. The 3/4 " rod movement is not enough so figure out how to get more movement!!

Trees
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Old 03-09-2003, 06:22 PM
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Trees-
Once again you have come to my aid. A wizer man would have hung on to his old booster until he knew that it ws the correct one instead of turning it in for the core charge. My thinking is that since I had a good pedal before, I'm going to get the master cylinder that should go with the booster. It seems like a no-brainer now but at the time I didn't realize that the one that I have is the wrong one.
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Old 03-11-2003, 07:32 PM
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Trees-
I pulled the brake pedal, cut a wedge in the front of it, heated it up and bent it and then welded it. I now have a very believable brake pedal. Thanks for your help. I still want to replace the bushings in the swing arm on top and then I'll move on to the electrical.
Ed

[ March 11, 2003: Message edited by: hiimed ]</p>
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