BuickGirlFromMars
SUPER STAR!
- Joined
- Oct 8, 2018
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- Buick Ownership
- 1999 Buick Park Avenue Ultra (Supercharged) , 1977 Buick Electra Limited (350 SBB)
so both pins had a end that allowed the rubber part? did the top and bottom of the bracket have the rubber tip inside it??? Thats concerning they were the same. I wonder if someone did both sides at the same time and then crossed them to be one kind on one side and another on the otherRed stuff is Disc Brake Quiet. Yeah, it's kinda redundant with the attached backing plates on the pads. But I've never had a squeal or issue using it anyway. But I've had a squeal long ago, diff car, that this stuff made go away. I'm a creature of habit with things that work.
View attachment 40061
The slide pins are identical. The bottom one has a long 1.25"(?) rubber tube on the tip. Sometimes it comes out with the pin. But not when cleaned and lubed. Using Sta-lube Synthetic grease.
View attachment 40062
The rubber boots were in excellent shape, I cleaned and lubed them and also the pins. The metal clips were replaced with new ones with the pads. Caliper bracket (wire brush cleaned) spots where clips contact were lubed with the caliper grease. The contact spots on the pad metal around the ears also lubed.
Safety inspections & emissions testing here are yearly, includes brakes.
Further interesting brake pad info. I found the pads I replaced when I first aquired the car (were in my scrap metal pile). Looks like they were installed with squealer tabs on the outer position. I don't recall that but it's evident from this pic.
View attachment 40064
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You can see the squealer tab is wide and would contact the caliper bracket if placed on inner position. I'm beginning to wonder if this caliper/car was spec-ed to have squealer tab positions to be on outer positions.
View attachment 40065
And on thee squealer, based on the AC delco pads way back I posted as the correct designs, the tab is turned upward toward the pad much more, maybe it would clear
Does the pad look factory? hard to tell but look before when I showed the "correct" design pads , if the features match and stuff, it may be OE. I dont recall OE having those protrusions and backing plate that design but they could be the oem.
I just did a google on disc brake quiet, it seems like it shouldnt be an issue for your piston seal, but read your bottle just in case. if not an issue, should be okay.
and on your inspections, all right. If you lube or service your brakes in any frequency going forward, I would make your next slide clips an OEM ac delco set that has the brass/yellow look, it should hold up slightly better than standard ones in your corrosive environment. Cheap steel is usually what they make em from.

