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Author Topic: 69 Z28 Power Booster & Master Cylinder Assy  (Read 4139 times)
detfox
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« on: December 15, 2007, 06:36:03 PM »

I need advice.  I believe I have the original booster (but someone painted it gold) and an odd ball master cylinder. I was considering purchasing a new reproduction system, but there are literally dozens on ebay.  Some claim to use original boosters and repo master cylinders, while others claim the master cylinder is original.  It would be easier for me to buy a completed assy rather then trying go through the headach of plating etc.  I'm sure there are threads on this, so if someone can give me advise or direct me to the link. Any help will be much appreciated.
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68Zproject
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« Reply #1 on: December 15, 2007, 07:08:28 PM »

Depends on what you're building.  Are you trying to restore or keep your car original?  Then you'll want to do it right, get the right parts, dates etc.  If not, then whatever works for you.  I think I'm probably not alone in saying I wasted more time and money by not researching before I did something, and having to do it over to make it right.
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68Z28
GaryL
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gandmal
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« Reply #2 on: December 15, 2007, 09:54:50 PM »

Look on the tab pointing up on the booster. Should have the numbers 9204 on one side and a julian date code on the other. If it is original send it to my firend, Steve Gregori here in Fresno County. He does alot of them and they turn out nice. Wink
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Gary

Lemans Blue X33. DZ, M20, manual steering. Only BU code rear end is original.
blownz
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« Reply #3 on: December 15, 2007, 10:39:00 PM »

Contact Jerry MacNeish, he plates them and does a great job.  He has done several for our Camaro Club.
www.z28camaro.com

Wayne 
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68Zproject
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« Reply #4 on: December 15, 2007, 11:21:55 PM »

Don't want to step on toes, but JM did mine and I thought he sent me a brand-new one it looked so good.
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68Z28
GaryL
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« Reply #5 on: December 16, 2007, 10:44:45 AM »

Not stepping on my toes. JM does superb work. I have several parts I bought from him. Smiley
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Gary

Lemans Blue X33. DZ, M20, manual steering. Only BU code rear end is original.
detfox
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« Reply #6 on: December 16, 2007, 11:52:00 AM »

I appreciate everybodys advice.  I'll remove the booster and make sure it's legit, then send to JM.  Still have the MC issue where guys are selling on eBay as original.  I'm trying to get the car correct as possible, but it will never be a ponts car becuase it does not have the correct VIN on the DZ motor.  I'm still open for suggestions.
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x77-69z28
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« Reply #7 on: December 16, 2007, 02:11:13 PM »

YOU DONT HAVE TO REMOVE THE BOOSTER. THE 9204 IS EASILY READ WITH A MIRROR AS IT FACES THE FIREWALL. THE JULIAN DATE FACES FORWARD AND IS 1 THROUGH 365. EASY TO FIGURE OUT BY THE PRODUCTION DATE.
GOOD LUCK. PERSONALLY I WOULD RATHER HAVE AN ORIGINAL REBUILT MASTER THAN A REPRO.
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68Zproject
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« Reply #8 on: December 16, 2007, 07:30:47 PM »

Are you looking for a 5468309 US master?  I would think those are fairly common.  I found a correct one for my 68 Z (which is a different one) and saw lots of 309 US mcs on e-scam not too long ago.  Cheap compared to the rest of the things I've bought.
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detfox
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« Reply #9 on: December 16, 2007, 08:53:11 PM »

I just bought what is supposed to be an original Delco rebuilt 309 on eBay.  I believe my booster is correct as I can see the 9204 behind the cheap gold spray paint.  I plan to send it to Mr. MacNeish.  Now any resource and the proportioning valve or what needed to restore?
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GaryL
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gandmal
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« Reply #10 on: December 16, 2007, 10:25:37 PM »

Have JM replate the round metering valve bracket as well as the booster. There is a place in the LA area called Karp's Brkae. The can rebuild the metering valve if JM can not.
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Gary

Lemans Blue X33. DZ, M20, manual steering. Only BU code rear end is original.
Jerry@CHP
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« Reply #11 on: December 17, 2007, 12:56:34 PM »

We rebuld proportioning valves IN-HOUSE and can beat everyone elses price on that job too, $125.00 parts and labor.

Jerry 
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tim69camaro
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« Reply #12 on: December 17, 2007, 08:55:33 PM »

YOU DONT HAVE TO REMOVE THE BOOSTER. THE 9204 IS EASILY READ WITH A MIRROR AS IT FACES THE FIREWALL. THE JULIAN DATE FACES FORWARD AND IS 1 THROUGH 365.

Does the date always face forward and the booster number always face to the rear?
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Tim Bailey
69z28302
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« Reply #13 on: December 26, 2007, 10:15:46 PM »

Just had CHP rebuilt my proportioning valve and replate my caliper brackets and they looked great.

69Z28302
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