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Disk brake pad shims? #1615901 05/04/14 06:17 PM 05/04/14 06:17 PM
Joined: Jan 2003 Posts: 738 OK D David_Trimble OP super stock
David_Trimble OP super stock D Joined: Jan 2003 Posts: 738 OK	First of all, thanks everyone who answered my question on the rotor bearing preload adjustment. That's been taken care of- the rotor is on, so I'm moving on to the next step... Next question - I've noticed that with the set of caliper pads I got, there is a set of shims with adhesive backing on them. They came in a white plastic pouch with vague instructions advising to apply the shims to the backs of the pads w/o removing the adhesive backing and checking the alignment- afterwards the backing can be removed and the shims applied to the back of the pads. It fails to say of course WHAT this 'alignment' is, and there is no mention of this in my '69 Charger FSM for the disk brake pads (although it is referring to the K-H/Bendix calipers). My questions are: 1) What alignment is this referring to? I've never seen something like this, even on a non-Chrysler car, and 2) Do I need to worry about using them at all? Again- thanks for any advice! David '69 Dodge Charger R/T

Re: Disk brake pad shims? [Re: David_Trimble] #1615902 05/04/14 06:52 PM 05/04/14 06:52 PM
Joined: Dec 2003 Posts: 16,844 Phoenix - surface of the sun nomore65BelvJim I Live Here
nomore65BelvJim I Live Here Joined: Dec 2003 Posts: 16,844 Phoenix - surface of the sun	Did they specifically call them shims? I did the brakes recently on my F body wagon which has the same brakes as your donor. It came with no "shims" or anything like what you describe. Could just be anti-rattle/squeal stuff. 8133958-100_2519a.jpg (37 downloads)

Re: Disk brake pad shims? [Re: nomore65BelvJim] #1615903 05/04/14 07:44 PM 05/04/14 07:44 PM
Joined: Jan 2003 Posts: 738 OK D David_Trimble OP super stock
David_Trimble OP super stock D Joined: Jan 2003 Posts: 738 OK	I took another look at the 'instructions' - it definitely refers to them as shims. They seem to be flat pieces of metal, no coating on them other than black paint on one side and a adhesive on the other-so if they're anti-rattle I can't imagine them being very suited for it. If that's their only function I suppose I can leave them off for the time being, and if the brakes get noisy then I could always go ahead and pull the pads and install them... Quote: Did they specifically call them shims? I did the brakes recently on my F body wagon which has the same brakes as your donor. It came with no "shims" or anything like what you describe. Could just be anti-rattle/squeal stuff. '69 Dodge Charger R/T

Re: Disk brake pad shims? [Re: David_Trimble] #1615904 05/04/14 08:18 PM 05/04/14 08:18 PM
Joined: Dec 2003 Posts: 16,844 Phoenix - surface of the sun nomore65BelvJim I Live Here
nomore65BelvJim I Live Here Joined: Dec 2003 Posts: 16,844 Phoenix - surface of the sun	Heres the page from the manual for the disc brakes. It doesnt mention shims just the use of the anti squeal compound 8134048-100_3875a.jpg (25 downloads)

Re: Disk brake pad shims? [Re: nomore65BelvJim] #1615905 05/04/14 08:48 PM 05/04/14 08:48 PM
Joined: Jan 2003 Posts: 738 OK D David_Trimble OP super stock
David_Trimble OP super stock D Joined: Jan 2003 Posts: 738 OK	Quote: Heres the page from the manual for the disc brakes. It doesnt mention shims just the use of the anti squeal compound Interesting..... I doubt these shims are replacements to the anti-squeal compound.... if the Diplomat's FSM makes no mention of the shims then I'll probably be ok in not using them. But now I'm wondering if I need to get a tube of that compound and apply some to the back of the pads... '69 Dodge Charger R/T

Re: Disk brake pad shims? [Re: David_Trimble] #1615906 05/04/14 09:16 PM 05/04/14 09:16 PM
Joined: Dec 2003 Posts: 16,844 Phoenix - surface of the sun nomore65BelvJim I Live Here
nomore65BelvJim I Live Here Joined: Dec 2003 Posts: 16,844 Phoenix - surface of the sun	I didnt use any on the 76 Aspen wagon and they are fine so far with over 1000 miles.

Re: Disk brake pad shims? [Re: David_Trimble] #1615907 05/04/14 10:48 PM 05/04/14 10:48 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	It's a substitute for anti squeek lube. The alignment is you want it between the metal portions of the adapter/caliper that the pad metal backing plates touches as it is that contact that squeals. Yes mock it up to see where it goes then slap it on there. You do not have to use em & if your pads are quiet you're good. & if they ain't then take em out & stick on the pads. My sliders were incredibly noisy till I judiciously used some DBQ sparingly on the back on areas of contact as needed live every 24 hour block of time like it's your last day on earth

Re: Disk brake pad shims? [Re: RapidRobert] #1615908 05/04/14 11:01 PM 05/04/14 11:01 PM
Joined: Jan 2003 Posts: 738 OK D David_Trimble OP super stock
David_Trimble OP super stock D Joined: Jan 2003 Posts: 738 OK	Quote: It's a substitute for anti squeek lube. The alignment is you want it between the metal portions of the adapter/caliper that the pad metal backing plates touches as it is that contact that squeals. Yes mock it up to see where it goes then slap it on there. You do not have to use em & if your pads are quiet you're good. & if they ain't then take em out & stick on the pads. My sliders were incredibly noisy till I judiciously used some DBQ sparingly on the back on areas of contact as needed Hmm- a wierd substitute for anti-squeek lube- I wouldn't have ever thought that's what they were for :/ So I'll just hang onto them and if they do get noisy I can just slap them on there as you say. '69 Dodge Charger R/T

Re: Disk brake pad shims? [Re: David_Trimble] #1615909 05/04/14 11:40 PM 05/04/14 11:40 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: Hmm- a wierd substitute for anti-squeek lube- I wouldn't have ever thought that's what they were for :/ Oh I agree & I cant say I've even seen that but there is no reason to shim pads so they cannot be anything but a novel antisqueak trick likely to avoid comebacks from unhappy owners upset with the noise & blaming the pad otherwise the pad mfr would not have gone to the trouble and expense of including them with the pads. It would be nice tho if they would have included good instructions that properly explained their purpose for the consumer live every 24 hour block of time like it's your last day on earth

Re: Disk brake pad shims? [Re: RapidRobert] #1615910 05/05/14 01:01 AM 05/05/14 01:01 AM
Joined: Apr 2007 Posts: 4,233 petaluma,ca. u.s.a. west master
west master Joined: Apr 2007 Posts: 4,233 petaluma,ca. u.s.a.	I've never understood why they are called anti squeal when they have nothing to do with the contact area of the pad, which is where the noise comes from. I think they serve more as an anti vibration device.

Re: Disk brake pad shims? [Re: west] #1615911 05/05/14 09:54 AM 05/05/14 09:54 AM
Joined: Aug 2010 Posts: 343 S.E.Mich D drew72 enthusiast
drew72 enthusiast D Joined: Aug 2010 Posts: 343 S.E.Mich	Quote: I've never understood why they are called anti squeal when they have nothing to do with the contact area of the pad, which is where the noise comes from. I think they serve more as an anti vibration device. Exactly. That is where the squeal comes from. Manufacturers have been using these anti squeal shims for years. 20 or more to my knowledge. They are packaged in pads that are known to have problems. They should definitely be installed.

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