2K5 with rear brakes that squeal ? Any ideas

sb325z71 · June 14, 2006

I have a 05 Lt Z71 crew cab with 13k that has been to the dealer 6 times for a rear brake noise. They have replaced the rear shoes, and drums once. They have also machined, the drums and cleaned the shoes twice. The E-brake has also been adjusted. On the last visit they replaced the drums and shoes. My brakes squeal has returned again!! Any ideas, as to why and were the noise is generating from ? Please help....

It is killing me

snoman · June 14, 2006

I have a 05 Lt Z71 crew cab with 13k that has been to the dealer 6 times for a rear brake noise. They have replaced the rear shoes, and drums once. They have also machined, the drums and cleaned the shoes twice. The E-brake has also been adjusted. On the last visit they replaced the drums and shoes. My brakes squeal has returned again!! Any ideas, as to why and were the noise is generating from ? Please help....

It is killing me

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Genrally it is from glazed pads on a smooth surface. OEM pad are pretty hard and can squeal some times. Also how you brake them in and use them can effect this too. If you really troubles you that much you could use some after market softer pads and the problem will go away.

sb325z71 · June 15, 2006

I have a 05 Lt Z71 crew cab with 13k that has been to the dealer 6 times for a rear brake noise. They have replaced the rear shoes, and drums once. They have also machined, the drums and cleaned the shoes twice. The E-brake has also been adjusted. On the last visit they replaced the drums and shoes. My brakes squeal has returned again!! Any ideas, as to why and were the noise is generating from ? Please help....

It is killing me

<{POST_SNAPBACK}>

Genrally it is from glazed pads on a smooth surface. OEM pad are pretty hard and can squeal some times. Also how you brake them in and use them can effect this too. If you really troubles you that much you could use some after market softer pads and the problem will go away.

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Thanks for the reply. Maybe I will try some after market bads. Any ideas on a good manufacture that I should try? Hows about the drums in regards to an aftermarket set up

snoman · June 15, 2006

I have a 05 Lt Z71 crew cab with 13k that has been to the dealer 6 times for a rear brake noise. They have replaced the rear shoes, and drums once. They have also machined, the drums and cleaned the shoes twice. The E-brake has also been adjusted. On the last visit they replaced the drums and shoes. My brakes squeal has returned again!! Any ideas, as to why and were the noise is generating from ? Please help....

It is killing me

<{POST_SNAPBACK}>

Genrally it is from glazed pads on a smooth surface. OEM pad are pretty hard and can squeal some times. Also how you brake them in and use them can effect this too. If you really troubles you that much you could use some after market softer pads and the problem will go away.

<{POST_SNAPBACK}>

Thanks for the reply. Maybe I will try some after market bads. Any ideas on a good manufacture that I should try? Hows about the drums in regards to an aftermarket set up

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I get mine at Advanced Auto and have for years. Just get the cheaper pads/shoes as they are the softer ones, do not get the expensive ones.

mmmikkke · June 15, 2006

Since I haven't heard of anybody else with a rear brake squealing problem on this forum, I'd say there's some other underlying cause to the problem.

Do you know if your rear brake self-adjusters were evaluated for proper operation?

Is it possible you're getting rocks in your rear drums (due to off roading through deep mud, for example)?

Is there any evidence of rear axle seals leaking?

Does anybody ride-the-brakes while driving your truck?

Anybody leave the parking brake engaged while driving?

Usually GM's OEM pads are quieter than any available aftermarket pads. Probably same goes for shoes. I'd hold off on replacing them, could just add a new problem if you put cheap ones on with sloppy tolerances.

sb325z71 · June 15, 2006

I have a 05 Lt Z71 crew cab with 13k that has been to the dealer 6 times for a rear brake noise. They have replaced the rear shoes, and drums once. They have also machined, the drums and cleaned the shoes twice. The E-brake has also been adjusted. On the last visit they replaced the drums and shoes. My brakes squeal has returned again!! Any ideas, as to why and were the noise is generating from ? Please help....

It is killing me

<{POST_SNAPBACK}>

Genrally it is from glazed pads on a smooth surface. OEM pad are pretty hard and can squeal some times. Also how you brake them in and use them can effect this too. If you really troubles you that much you could use some after market softer pads and the problem will go away.

<{POST_SNAPBACK}>

Thanks for the reply. Maybe I will try some after market bads. Any ideas on a good manufacture that I should try? Hows about the drums in regards to an aftermarket set up

<{POST_SNAPBACK}>

I mean PADS

snoman · June 15, 2006

Since I haven't heard of anybody else with a rear brake squealing problem on this forum, I'd say there's some other underlying cause to the problem.

Do you know if your rear brake self-adjusters were evaluated for proper operation?

Is it possible you're getting rocks in your rear drums (due to off roading through deep mud, for example)?

Is there any evidence of rear axle seals leaking?

Does anybody ride-the-brakes while driving your truck?

Anybody leave the parking brake engaged while driving?

Usually GM's OEM pads are quieter than any available aftermarket pads. Probably same goes for shoes. I'd hold off on replacing them, could just add a new problem if you put cheap ones on with sloppy tolerances.

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You make some good point but factory pads are hard and have a smaller window of quiet operation (they make them hard to claim long pad life at expense of rotor or drums) With softer pads, they may wear out a bit sooner but they are far less prone to squeal and a lot easier on rotors and drums too.

WHITESILVERADO2003 · July 24, 2006

My brakes were squealing on my 2003 Silverado after I replaced the factory units with Napa Raybestos semi mettalic pads and rotors. The parts guy at the dealer said that GM pads and brakes would not change things as he believed they use the same pads and rotors from Napa. The solution was a small bottle of BG anti squeal. BG is a great company with lots of great products. I sanded the pads to remove any glazing and brushed on the BG anti squeal. It contains isoproyl and isobutal alcohol and graphite. Let it soak in for ten minutes and replace brakes. This requires complete disassembly but was worth it in the long run. I also sanded and used the BG on the rear e-brake pads to eliminate that squeal nightmare I was told would come later. So far so good. The BG Anti-squeal was ten bucks. I also followed the 30-30-30 procedure I found below-

I work @ a dealership in Texas. Most problems with brake squeal occur when vehicles are bought new and the new pads are not seated properly. When the pads are new, there should be what is called a 30-30-30 seating process followed to break in the pads. 30 mph stop within 30 ft, allowing for 30 seconds cool off period between stops. This should be done about 30 times. This was in an article from Wagner Brakes if I am not mistaken. You are right about rust build up. It is common. The pads are of metalic material and when they are new, they have to go through heat cycling so the material can bond with the metal. The adhesive has to melt for lack of better terms to adhere to the metal product in the pad. I use this method faithfully, and I don't have returns on squealing brakes. Also, be very carefull about getting tire shine, armor all or any other dressing on the rotors when cleaning your vehicle.

Hope this helps, Good Luck!

I have a 05 Lt Z71 crew cab with 13k that has been to the dealer 6 times for a rear brake noise. They have replaced the rear shoes, and drums once. They have also machined, the drums and cleaned the shoes twice. The E-brake has also been adjusted. On the last visit they replaced the drums and shoes. My brakes squeal has returned again!! Any ideas, as to why and were the noise is generating from ? Please help....

It is killing me

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