Rear brake sliding pin sheared off...

[ozarkmud]

Started with a brake job today. My left rear brake's slider was stuck and all of the wear happened on one pad. This is with an OEM refurbished caliper on its first pad.

Anyway, one of the sliding pins was stuck. Impact wouldn't take it off. I had to put the "torque plate" back on and use my breaker bar. Eventually, the sliding pin sheared off below the threads.

Now I want to get the rest of the sliding pin out of the torque plate and I'm not really sure how. I was pounding on it from the top side with a punch, but then I noticed that on the back side it's not a through hole -- it has a smaller hole that the pin can't fit out of. I tried pushing out with a punch from that side and it's very stuck. It appears the rubber boot failed and the caliper pin rusted to the torque plate.

Should I try drilling it out? Pressing it out?

Having a hard time telling for sure, but is 47715-22010 the part number for both the "sliding main pin" and "sliding sub pin"? They look identical in the FSM.

I have pictures I can share for the curious.

 

[ozarkmud]

Looking into this some more, it looks like Toyota OEM refurbished calipers come with the torque plate and the whole thing assembled.

Is it possible I screwed up the install? I am just pretty shocked by this kind of failure so soon.

 

[ozarkmud]

 

[jonheld]

AFAIK, the refurbed rear calipers do NOT come with the mounting bracket.
New OEM brackets are still available as are all the parts required for a full rebuild.
Rear left bracket: 47722-60020
Rear right bracket: 47721-60020
Slide pins: 47715-22010
Piston: 47731-60020
Rear caliper rebuild kit: 04479-60030 does both sides.

FWIW, I always use a liberal amount of grease on ALL parts when rebuilding calipers. It helps to avoid this issue.

 

[vfrer]

I believe the refurb caliper is just the caliper, you have to reuse the bracket and hardware. Are you sure that was all new when you were in there last? I had to find new rubber boots when I did it recently to try and give the pins the best chance at lasting. Crazy that it broke there, would think it could be drilled out, maybe lots of heat to burn out the rubber?

 

[ozarkmud]

I honestly can't remember if it had it or not, but some searching on Ebay and around, I kept finding OEM calipers with the torque plate. The rubber looked fresh to me, though.

I'm thinking I'll try the press plus some heat. If the rubber is burned out, it may come out easier.

Grease on "all parts": Slide pins, of course, but where else?

Now my one good slide pin had a dark grease, which makes me wonder if I used a wheel bearing grease on it, possibly not having the correct stuff.

 

[jonheld]

I honestly can't remember if it had it or not, but some searching on Ebay and around, I kept finding OEM calipers with the torque plate. The rubber looked fresh to me, though.

I'm thinking I'll try the press plus some heat. If the rubber is burned out, it may come out easier.

Grease on "all parts": Slide pins, of course, but where else?

Now my one good slide pin had a dark grease, which makes me wonder if I used a wheel bearing grease on it, possibly not having the correct stuff.

Like I said, I grease everything. All rubber, slide pins, through holes in the mounting bracket, outside of the piston, piston o-ring, piston seal, backs of the pads. Basically anything that moves.
I use Amsoil moly grease for all parts.
The threads of the slide pins and caliper mounting bolts get anti-seize.

Given the state of your mounting brackets, I would simply buy new ones.

 

[ozarkmud]

Yeah... new ones it is.

I was able to press the pin out. Was a real pain trying to find the right thing to use as a pin. But, good practice for me on the press.

I ordered Cardone remans from RockAuto. I can't see any reason they'd have issues, unless they were dinged up where the seals go.

I couldn't get the seal to go in properly. The bore was rusty and the pin wouldn't slide well, so I cleaned it up with a drill bit. But with the seal, it was pressed in and the pin couldn't go in. The sealing surface was too chewed up. It'd be usable for a temporary basis, but not something to just leave like that.

Thank you for your replies!

 

[COS80]

I ordered Cardone remans from RockAuto. I can't see any reason they'd have issues, unless they were dinged up where the seals go.

The reason why is because Cardone is absolute trash. You'll be lucky if you even get two matching calipers, never mind working ones.

 

[ozarkmud]

The reason why is because Cardone is absolute trash. You'll be lucky if you even get two matching calipers, never mind working ones.

These are the caliper brackets, not the whole calipers. We will see how they are.

 

[COS80]

Oh. Well that should be harder for them to cock up.

 

[ozarkmud]

Can anyone recommend any tricks for installing the rubber bits in the caliper plates?

The top pin, the one with the solid piece of rubber that goes all of the way through, is tricky. The bottom pin is also tricky, but I am hoping it's better on the new torque plates.

Do I pinch them to reduce the area, then push in?

Thank you!

 

[jonheld]

Can anyone recommend any tricks for installing the rubber bits in the caliper plates?

The top pin, the one with the solid piece of rubber that goes all of the way through, is tricky. The bottom pin is also tricky, but I am hoping it's better on the new torque plates.

Do I pinch them to reduce the area, then push in?

Thank you!

Grease the crap out of the rubber and the hole.
Use a wooden dowel and push until seated.

 

[ozarkmud]

Grease the crap out of the rubber and the hole.
Use a wooden dowel and push until seated.

Thank you!

I'll do that for the long one up top.

Does something like this work for the smaller one on the bottom? That one has the flange on it.

 

[jonheld]

Thank you!

I'll do that for the long one up top.

Does something like this work for the smaller one on the bottom? That one has the flange on it.

The small one with the bellows just snaps in. There's a groove in the mounting plate that it fits into.

 

[ozarkmud]

I wonder if it's just my torque plates. Hopefully the new torque plates make it easier to get those dust boots in. Right now, it's very tricky if not impossible to get it right.

 

[ozarkmud]

Alright, new torque plates are in and installed. These are the Cardone remanufactured ones.

Quality seemed excellent! Rubber pieces were easy to get in.

Wanted to post the update in case anyone was on the fence about getting those aftermarket.

 

[Rusty Marlin]

Those pins should be pulled and greased every time you do a tire rotation/oil change or at least every other. For me that 7500 or 15k miles.