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Old 05-16-2003, 05:28 AM
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Post GM calipers - brake pads rattle!

I'm using 'standard-issue' GM brakes on the front of my '32 but I've noticed that the inside pad (pushed by the caliper) is slightly loose in its 'slot' when brakes are off, and actually rattles as you drive down the road. When you dab the brakes the rattle stops.
Is there supposed to be a spring plate or something to apply tension to the pad? I'm using 2 lb residual valves in the system. Any ideas appreciated. Thanks, Limey

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Old 05-16-2003, 07:50 AM
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It is usually the outside pad that does the rattling. The inner has the little clip that goes inside the puck to keep it still. If yours are the outers, you can bend the pad ears with a large set of channel locks and also they have different little pads and stuff in a tube that goes between the outer pad and the caliper that is for stopping that noise.
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Old 05-16-2003, 08:52 AM
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yeah limey, what he said
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Old 05-18-2003, 05:56 PM
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Sounds like the inner pad clips are gone or worn out.
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Old 05-19-2003, 12:56 AM
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Hmmm, sounds like I was supplied without the little clips - and having never seem GM brakes up close before (in rainy England!) I'm none the wiser. Anyone have a picture or web link to see what they're like? Any idea if you can buy them on their own, or would they come with the pads?
Thank, Limey
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Old 05-20-2003, 08:15 AM
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also check inside where the retaining bolts slide through the caliper, take out the metal sleeve & inside the holes are rubber o-rings. I had these go bad on my burb & it cause the brakes to rattle also, cheap fix IF you can get the o-rings....joe
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Old 06-02-2003, 05:50 AM
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Rubber O rings are fine but I had no inner clips with my brake kit (I think its uses late 70's GM rotors/calipers like all the hot rod kits) so the inner pads rattle like hell when the brakes are off.
Can anyone point me to an internet site for picture of what I'm missing? - or supplier to get the clips? Would they normally come with pads?
Thanks, Limey
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Old 06-02-2003, 06:33 AM
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here in the states we can go to a parts store & get them.sorry dont have a pic..joe
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Old 06-02-2003, 04:17 PM
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Limey, I have only one manual at home and it is for a Cadi. I can scan a couple of pics of caliper springs and send you by email, if you have that capability. If so send address by PM and it will be easy, if not let me know and I can get it into my photo album and you can look there. I'm not good enough with the 'puter to post it here.

Trees
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Old 06-02-2003, 06:53 PM
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Simon

I have a rattler on my suburban and have just gotten what they call a shim kit which has a shim with ears on it and a sticky backing. If you give me your e-mail address I will take dig pics ( low res ) of the inner clips and also of the shim kit. Must be a bummer trying to do things from over there. Maybe you can see how I felt years ago working with my MGA twin cam.
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Old 06-03-2003, 04:37 AM
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Trees and 85406 - thanks for your offers guys. Hopefully my email address will now appear on this mail - look forward to seeing what I need to make or buy.
Limey
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Old 06-03-2003, 03:38 PM
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Limey, received your PM, but no e address came thru. Also, you have us blocked out from sending a PM, or maybe it's an overseas deal. I will post the pics in my photo album to view. Tell me what kind of rotors (make and model) and I will send you some anti rattles, if you can get me an address by PM. (Need a bit more than mid 70s standard Hot Rod item)

Trees

[ June 03, 2003: Message edited by: trees ]</p>
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Old 06-05-2003, 09:25 AM
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When I had the same problem and I had all the OEM parts in place and in good shape, I'd simply add a little brake pad isolation sealant that comes in a small tube. Mine is orange and I got it at my local auto parts store. I squeeze out a small amount on the surfaces that make contact with the caliper parts and the squeeks and rattles are gone forever.
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