The rotors and pads are both AC Delco Professional, just one step down from the full-blown GM factory stuff. They don't even make the factory rotors anymore, so these are the ones that the dealerships now use. I didn't think I had to spend $100 on the factory pads, so I went with these instead. I believe they were about $40 from Amazon.
Brand new rotors/pads squeaking...
- Thread starter derekjl
- Start date
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The rotors and pads are both AC Delco Professional, just one step down from the full-blown GM factory stuff. They don't even make the factory rotors anymore, so these are the ones that the dealerships now use. I didn't think I had to spend $100 on the factory pads, so I went with these instead. I believe they were about $40 from Amazon.
PG01
Supporting Member
Like rocket said, they do sound glazed. Try his bedding procedure but i would def bring it back. I have used factory, cheap, midline and every brand/type and haven’t ever had a squeal.
swathdiver
Full Access Member
These are the instructions for GMT900s:
BRAKE PAD AND ROTOR BURNISHING
Burnishing the brake pads and brake rotors is necessary in order to ensure that the braking surfaces are properly
prepared after service has been performed on the disc brake system.
This procedure should be performed whenever the disc brake rotors have been refinished or replaced, and/or
whenever the disc brake pads have been replaced.
1. Select a smooth road with little or no traffic.
2. Accelerate the vehicle to 48 km/h (30 mph).
3. Using moderate to firm pressure, apply the brakes to bring the vehicle to a stop. Do not allow the brakes
to lock.
4. Repeat steps 2 and 3 until approximately 20 stops have been completed. Allow sufficient cooling periods
between stops in order to properly burnish the brake pads and rotors.
In addition, more than once I've seen shops put the pads on backwards. Doing mine own rears now and the old pads were on the wrong sides and because of that the inside pad made very little contact with the rotor; knuckleheads.
BRAKE PAD AND ROTOR BURNISHING
Burnishing the brake pads and brake rotors is necessary in order to ensure that the braking surfaces are properly
prepared after service has been performed on the disc brake system.
This procedure should be performed whenever the disc brake rotors have been refinished or replaced, and/or
whenever the disc brake pads have been replaced.
1. Select a smooth road with little or no traffic.
2. Accelerate the vehicle to 48 km/h (30 mph).
3. Using moderate to firm pressure, apply the brakes to bring the vehicle to a stop. Do not allow the brakes
to lock.
4. Repeat steps 2 and 3 until approximately 20 stops have been completed. Allow sufficient cooling periods
between stops in order to properly burnish the brake pads and rotors.
In addition, more than once I've seen shops put the pads on backwards. Doing mine own rears now and the old pads were on the wrong sides and because of that the inside pad made very little contact with the rotor; knuckleheads.
Tozan
Overlander
I installed EBC yellow pads on mine and they work great with no noise.
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