Was having some brake issues over the weekend. Pulled the rear
drums(huge) off and found the wheel cylinder to be leaking. I also
noticed that one of the pins that goes into the end of the cylinder was
missing. These are the pins that push out of the cylinder. After
looking at the brake pads, you can tell there wasn't one of there when
it was replaced. Dont know when or where.
Does anyone know where i can get one of these? I have it apart and
would like to get it fixed correctly. The parts store(auto zone) said
that was a dealer item only since it never needs replaced. Any help
would be great on this.
It is the larger braking system as well. I think its like over 8000
sorry, I left the part out that i did replace the wheel cylinder
already. That is not my problem. The problem is that one of the parts
that stick out of the wheel cylinder that actually push the shoes out
is missing. When i pulled the drum off, one of them was missing and
looks to have never been put back in from the last brake job. You can
tell by looking at the shoe, that one side has never had this piece
touching the shoe compared to the other. I didn't drop it, and it did
not fall out with the disassembly process either. This was done before
i got the truck. I am needing to find one of these pieces and im not
having much luck.
Sorry Ron, but you're not making any sense. If you replaced the wheel
cylinder then you would have installed a complete unit. You say that the
part was lost before you got the truck, but then you say you replaced the
wheel cylinder. Both statements can't be true. The plunger that contacts
the brake shoe is part of the wheel cylinder. If you replace the wheel
cylinder you would have all of the parts.
Maybe we're talking about two different things. I've never seen an external
pin for a wheel cylinder. I was referring to the slug that is part of the
wheel cylinder which the top of the shoe rests against and which pushes
against the shoe. This part is a part of the wheel cylinder.
I know the pins you are talking about, and you're right, they don't
come with the new wheel cylinders. As mentioned, Napa should be able
to get them, or the dealership, for such a small item, I'd just hit the
dealership, they shouldn't be too expensive. I had the same trouble
with my rear drums on my 88 3/4 ton. Mine has the smaller brakes, but
the trouble with them is that they don't self adjust, so next brake job
I do on it, I'm swapping to discs from http://www.tsmmfg.com/ Kits are
reasonably priced and for being able to get rid of the hassle of
dealing with drums, I'm sold on them. Good luck on yours.
Thanks for all the reply's. I hope we are all on the same page now.
We are talking about the pins or whatever you want to call them that
stick out both sides of the cyclinder that push that pads. These do
not come with the cylinder. I have checked at 3 different spots now.
The guy at napa says he can't get them, so i will be contacting our
local dealer this afternoon about replacements.
I'm not familiar with the exact application the OP is working on, but
at least older MoPars and Studebakers used a pin that was simply
retained by the wheel cylinder boot that actuates the shoes. The
pistons are just that, the inside is flat and the outside is cup-shaped
to mate with the pin which has a rounded end. When you buy new wheel
cylinders for those apps. they come without the pins, you transfer them
over from the old wheel cylinder.
Unfortunately, I can't find the part either searching napaonline or
Wagner's online catalog, so you might have a trip to the dealer in your
If I may make a suggestion, it might not be a bad idea to replace both
rear wheel cylinders; if that pin was missing that piston should have
blown out of the wheel cylinder a long time ago; the fact that it was
only leaking suggests that it was also seized, and the other side may
not be in much better shape.
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