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post #1 of 5 (permalink) Old 04-07-2019, 12:18 PM Thread Starter
 
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Master Cylinder Question

Unfortunately it seems I need a new master cylinder after replacing everything else. I have disc on the front and drum on the back. Do I need a special Master Cylinder, Thanks for the help
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post #2 of 5 (permalink) Old 04-07-2019, 12:38 PM
 
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67 4 piston disc ?
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post #3 of 5 (permalink) Old 04-07-2019, 06:14 PM
 
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Keiko,
You don't need anything special. Just pick up one from a local auto parts store. I will advise that you buy a new one and not a remanufactured. I just did my '69 a couple weeks ago and had 2 remanufactured one leak and I finally got a new one instead. It's well worth the cost, I think it was like $10 dollars more.
Good Luck,
Rob.
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post #4 of 5 (permalink) Old 04-07-2019, 07:54 PM Thread Starter
 
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Originally Posted by rkuchar69gto View Post
Keiko,
You don't need anything special. Just pick up one from a local auto parts store. I will advise that you buy a new one and not a remanufactured. I just did my '69 a couple weeks ago and had 2 remanufactured one leak and I finally got a new one instead. It's well worth the cost, I think it was like $10 dollars more.
Good Luck,
Rob.
Hey thanks Rob. do I need the one with the round reservoir in front and the square in back ? the one I just took off had a 1.125 bore and a lot of them have a 1 inch bore dose it make a difference. Also would you happen to know if you can bleed the brakes without the car running. ?? Thanks for your help
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post #5 of 5 (permalink) Old 04-10-2019, 07:34 PM
 
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Yes larger cavity in front for disc and small cavity in rear for drums. You can successfully bleed brakes without car running.
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Exhaust, Suspension, Alignment, Fuel Tank and Brakes.

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