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Old 08-19-2016, 05:10 AM   #1
BennyLava
 
Drives: 1987 Silverado
Join Date: Jan 2010
Location: Texas
Posts: 314
Replacement time, and brake bolt rubbers question

Hi all. Had a couple of questions about my 2009 Sedan brakes. I went to put new pads and rotors on it, but I'm finding the job to be a bit odd. First off all, the car has 152k miles on it, and the pads and rotors look to be fine. I bought the car with only 40k on it, so you know these must be the factory rotors and pads. Cause I've certainly never changed them.

But, I faintly started to detect that warped rotor wobble. It only seems to make itself known when you're at a certain speed, during braking. And it doesn't always do it. So its pretty faint evidence for the warped rotor wobble, but I have noticed it here and there. So I said fine, these brakes have 150k on them, may as well go ahead and replace the rotors and pads.

Well I get in there, and the rotors seem to be pretty flat, and the front side doesn't even have any lip, at all. The back side does have that small lip that old rotors start to get. But its not very big. The pads, seem to have at least half life still left on them, maybe even 2/3 life left. So at least by the looks, I'm a bit confused.

So what is your opinion? Should I just go ahead and replace them, even though there is some evidence that they may still be good? Should I perhaps wait another 10k, or 20k miles and see what happens? Or should I go ahead and do it now? Personally I dislike the idea of replacing something that doesn't need to be replaced at that time.

Lastly, I have another question related to the rubbers that go along the bolts that hold the top of the caliper, to the bottom. Those bolts that on some cars, you will take them out and clean them and put new grease on them, whenever you do a brake job on the car. I think they're called the caliper slide pins. Anyway, on the Yaris they seem to be actually attached to the caliper, by way of their rubber dust guards. How do I get these off? I tried pulling them out really far, but I can tell that if I continue pulling, it will tear the rubber guard. What do you do about greasing up these bolts, if anything?
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