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Old 04-27-2011, 10:55 PM   #1
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Default Uneven wear on pads..thoughts?

I just got around to changing my driver'* side wheel hub (planned on doing it last week, then life got in the way). When I pulled off my caliper, I noticed that one brake pad was literally almost metal, while the other one had a good 1/2-3/4" of pad left.

Is my caliper sticking or something? I'm trying to come up with another reason, and nothing is coming to mind.

On the subject of calipers, is there a nice Stage-1 type caliper for W-Bodies? I was looking at GTP calipers, but I need 18" wheels for that. (Mine are only 16")
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Old 04-28-2011, 07:43 AM   #2
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Default Bad calliper.

Almost certainly you have a sticking calliper.
However it'* a simple fix, remove the calliper and free off all moving parts and reassemble after giving them a light coating of copper grease.
Make sure the pistons move freely as well, get a friend to push the brake pedal down and you should see the piston(*) move out, when he releases the pedal it should move back a fraction. If it doesn't then you should replace the seals (kits are available from any good autoparts store), you will get your hands dirty but save $$$ over replacing the calliper.
Do this on both sides and replace ALL the pads. Check the disc (rotor) for one sided wear from only being loaded one side too.
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Old 04-28-2011, 08:57 AM   #3
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Yep, sticking caliper. You need to clean up the slide area and put a little lube on it.
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Old 04-28-2011, 09:56 AM   #4
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they have caliper specific grease, dont know what copper grease is personally.
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Old 04-28-2011, 11:40 AM   #5
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Copper based grease is what we use over here as a lubricant for moving parts in a hot environment such as brakes, it is also used for lug nuts and many applications to prevent nuts and bolts seizing (freezing?).
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Old 04-28-2011, 09:22 PM   #6
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