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Rear Brakes Cylinders for 70-72 Z cars
http://forums.ctzcc.com/viewtopic.php?f=15&t=9348
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Author:  johnnyZ [ Thu Dec 21, 2017 4:27 pm ]
Post subject:  Rear Brakes Cylinders for 70-72 Z cars

For those of you (like me) who are keeping your rear drum brakes on your old Z's, I thought I'd share this tidbit with you.

From my 46 years of owning and maintaining an early Z car, I always felt the Z brakes worked well but needed to be maintained on a regular basis, especially the rear brakes. I've replaced rear wheel cylinders and even rebuilt them over the years after spotting that dreadful fluid trip running down the inside wall of a rear tire. My brakes are fine now but I have noticed that the 70-72 rear wheel cylinder prices have shot up dramatically from Motorsport and they no longer seem to sell the rebuild kits for the cylinders. Replacement cylinders are now around $200 each :shock: .. Later models for 73-76 are only around $39.

I recently found that Rock Auto is stocking Centric cylinder rebuild kits. I ordered 4 of them for a mere $5.40 each. Wheel cylinders themselves normally don't where out. They may need to be cleaned and honed (you can buy a hone tool for less than $20). The kit includes the critical cylinder piston seal and a new cover seal. Easy Peesey! :D

Of course you should completely flush and bleed your brakes every 2-3 years to keep them working properly.

Author:  Frank T [ Thu Dec 21, 2017 7:11 pm ]
Post subject:  Re: Rear Brakes Cylinders for 70-72 Z cars

Do you know if the rebuild kits are available from someone else? I could research that myself but I'm too laZy.....

Author:  FM6 [ Fri Dec 22, 2017 9:29 am ]
Post subject:  Re: Rear Brakes Cylinders for 70-72 Z cars

Surprisingly I have had great luck with NAPA to find kits like that and various seals and bearings.

Author:  Frank T [ Fri Dec 22, 2017 12:35 pm ]
Post subject:  Re: Rear Brakes Cylinders for 70-72 Z cars

Yeah, but you drive one of those fast & shiny new "modern" cars, Karl. There were like what, 40 billion of those made? I was wondering about the old CLASSIC Zs. 8)

Author:  FM6 [ Fri Dec 22, 2017 3:22 pm ]
Post subject:  Re: Rear Brakes Cylinders for 70-72 Z cars

Frank T wrote:
Yeah, but you drive one of those fast & shiny new "modern" cars, Karl. There were like what, 40 billion of those made? I was wondering about the old CLASSIC Zs. 8)

:P :P :P :P :shock:
I am speaking about finding parts for my 75 280 the one with same engine thats in your old decrepit multi million $$$ one ! :mrgreen:

Author:  johnnyZ [ Fri Dec 22, 2017 11:11 pm ]
Post subject:  Re: Rear Brakes Cylinders for 70-72 Z cars

I've looked at the websites for NAPA, Autozone and Advance without any luck. Advance's site seems difficult to use as it comes up with wheel cylinders that I know don't fit my car and constantly discards the vehicle information I enter when I do a parts search. :roll:

The cylinder kits I received from Rock Auto look correct but I have yet to verify if the new seals fit an old wheel cylinder. I will do that soon and let you know.

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