2 more ‘67 GMC brake questions....

[jabborabbo]

1. Are the wheel cylinder pistons reusable?

2. Where can I find two of the washers that fit under the front cylinder bolt? (pic below)

[gmc684x4]

For the cost of the wheel cylinders I usually buy new ones there like 6 bucks at rock auto

[jabborabbo]

Originally Posted by gmc684x4

For the cost of the wheel cylinders I usually buy new ones there like 6 bucks at rock auto

I bought new ones but they didn’t come with the pistons or those washers....

[Steeveedee]

Originally Posted by jabborabbo

I bought new ones but they didn’t come with the pistons or those washers....

You bought a rebuild kit, then? I've never seen a wheel cylinder that wasn't complete with new pistons. Please post a picture. If you actually bought the cast iron body of the wheel cylinder, somebody dog-robbed the innards.

[jabborabbo]

Originally Posted by Steeveedee

You bought a rebuild kit, then? I've never seen a wheel cylinder that wasn't complete with new pistons. Please post a picture. If you actually bought the cast iron body of the wheel cylinder, somebody dog-robbed the innards.

Cast iron body, rubber covers, and innards. Maybe piston is the wrong word - I’m referring to the things that stick out from the cylinder and bear against the brake shoes.

[geezer#99]

If you mean the short push rods like these in the link then yes reuse them.

https://partsavatar.ca/1963-1967-chr...SABEgI6cfD_BwE

[Steeveedee]

Originally Posted by geezer#99

If you mean the short push rods like these in the link then yes reuse them.

https://partsavatar.ca/1963-1967-chr...SABEgI6cfD_BwE

Yup. Depending on how yours look, they are probably OK. I've never replaced those unless they were missing, or like on my '05 Corolla, just plain eaten by wear.

[jabborabbo]

Thanks for the replies!

Any suggestions on my second question regarding the washer?

[LockDoc]

Originally Posted by jabborabbo

Thanks for the replies!

Any suggestions on my second question regarding the washer?

Ace or any other good hardware store should have a specialty washer with those inside and outside dimensions. (maybe even the big box stores) Just grind the side off and put a little paint on it to keep it from rusting. After you get it all together just tap the washer over one of the flats on the top of the anchor bolt to keep it secure. You can actually start the bend in a vise before you put them on.

LockDoc

[jabborabbo]

Originally Posted by LockDoc

Ace or any other good hardware store should have a specialty washer with those inside and outside dimensions. (maybe even the big box stores) Just grind the side off and put a little paint on it to keep it from rusting. After you get it all together just tap the washer over one of the flats on the top of the anchor bolt to keep it secure. You can actually start the bend in a vise before you put them on.

LockDoc

I looked at Lowe’s... couldn’t find a thin one....

[chevykevy]

You may be able to find one in the drawers of hardware and look in the BUSHINGS not washers. You might have luck

[jabborabbo]

Originally Posted by chevykevy

You may be able to find one in the drawers of hardware and look in the BUSHINGS not washers. You might have luck

Found some at Ace hardware...haven’t tried them yet, but things look hopeful!

Thanks!

[LockDoc]

-
I looked at my semi-local Theisens farm store. It looks like those washer type bushings would work but I didn't have the inside dia. measurement with me.

LockDoc