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- - heavy duty brake question (https://67-72chevytrucks.com/vboard/showthread.php?t=823280)

69Tom

06-30-2021 02:49 PM

heavy duty brake question

My 74 C20 has the heavy duty brake package (J55). I'm in need of new rear brake wheel cylinders. Can anyone confirm that OEM part 5472327 is the correct cylinders for these? It's a little hard to tell in the parts catalog. I think it's right, but I'm not sure.

Need to figure out which ones I need to buy in the aftermarket world.

Thanks.

MJN	06-30-2021 03:28 PM

Re: heavy duty brake question

My '74 has the same HD Brakes, 13" rear drums. I just rebuilt my rear brakes and used AC Delco wheel cylinders 18E113

69Tom

06-30-2021 03:29 PM

Re: heavy duty brake question

Thank you very much.

MJN	06-30-2021 03:43 PM

Re: heavy duty brake question

But to answer your original question the GM wheel cylinder part number is 18004947

69Tom

06-30-2021 03:56 PM

Re: heavy duty brake question

Quote:

Originally Posted by MJN (Post 8938611)

But to answer your original question the GM wheel cylinder part number is 18004947

Cool. Thanks. Was able to get 2 NOS AC Delco cylinders for $15 on eBay.

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