New brakes and rotors are squealing!!!!

[tireman]

Grease em

I'm 58 and we never greased them back in the 60's, now you do...strange for me to accept but that's the way it is. Did you remove the caliper pins and regrease and don't forget to grease the brake pad ears, cause they slide back en forth. hey coat the entire back of the pad with grease. Yes surprised me too!
Look on youtube, some great advice. Another thing, are your pads semi metallic? If so, then they are gonna squeal no matter what. Get ceramic pads, I always get the NAPA brand, the adapter one, they call it. Once they settle in, no squeal.

 

[nelliott500]

The caliper pins are fine. I greased them when I originally changed out the pads and I rechecked them today and they're fine. I greased the pad ears and the backs.

My pads are semi-metallic. They're Wearever Silvers. But, again, I've been putting Silvers on my last few cars without any squealing or screeching. It's just something with the LS.

 

[2005_LS_V8]

...Another thing, are your pads semi metallic? If so, then they are gonna squeal no matter what. Get ceramic pads, I always get the NAPA brand, the adapter one, they call it. Once they settle in, no squeal.

Great advice here on this thread! I also suffer from the squeal. Bought my LS recently and noticed squeal during rush hour traffic stop-and-go. Thought they seemed to be fading a bit as well, so as part of my initial maintenance, I had the front rotors and pads replaced.

I used the NAPA premium rotors - no slotting or drilled offered, just regular premium rotors. The Ultra Premiums (they have a black hub on them, vs. regular silvery hub, supposedly made of a superior alloy for hardness) were not available without ordering, so I settled for what they had. I also got the Adaptive One pads, supposedly great pads. Adaptive Ones are Ceramic, made by Rayloc. They Material Safety sheet says 'RAYLOC ASBESTOS FREE CERAMIC DISC BRAKE LINING MATERIAL', so I guess that is the 'Raybestos' that people here have made positive comments about. Rayloc is owned by Genuine Parts, parent of NAPA Auto Parts stores.

That being said, after my fronts were done, the braking performance improved, but the squeal is still there. I trust my mechanic did things right. He said back brakes had 50% wear left. When I can scrape up the funds for the backs, I will put the same parts on there and reply back to this thread with a result, hopefully a result of no more squeaks! So annoying...

This is the pad part # I used:
ADO AD7676

Premium Rotor part # I used:
NB 4886841
Manufactured by Affinia

Want the Raybestos super duper Rotors? Use this part #:
UP 86841

Want to see an entire cross reference for the front rotors I used?
AC Delco 18A963 OEM
AC Delco 18A963A OEM
Advance Auto Parts 145270
Advance Auto Parts YH145270
Aimco Brake Products 10154088
Aimco Brake Products 54088
ARI 8934060
ATE North America CW30725
Austin Healey JLM20801 OEM
Auto Specialty AR8160
Auto Specialty AR8160E
Autozone 54088
Beck Arnley 832799
Bendix Automotive 145270
Bendix Automotive PRT5270
Bosch 20010355
Brembo 25525
Carquest 54088
Casting Number (Unknown Mfr) 211259C
Casting Number (Unknown Mfr) 325508
Centric 12061060
Centric 12061077
Centric 12161060
Centric 12161077
Centric 12561060
Dura International BR54088
Federated F66841
Federated F66841R
Federated SB66841
Ford XW4Z1125AA OEM
Guardian 52125695
Jaguar JLM20801 OEM
Jaguar XR838417 OEM
Mighty 54088
Motorcraft BRR109
NAPA 4886841
NAPA 86841
NAPA United 86841
O’Reilly 81125695
O’Reilly BD125695
Parts Plus P66841
Parts Plus PP66841
Pep Boys 54088G
Qualis 54088
Quality 54088
Quality Q4048
Quinton Hazel BDC5119
Raybestos 66841
Raybestos 66841R
TRW International 4105
Universal 102929
Wagner Brake Products BD125695
Winhere Brand YH2655