Unusual PP rear brake pads?

[JPSTANG]

Was messing around with the spindle nut today cause i ended up with a loose tire. Decided to go a little more indepth and look at the bearing itself when I found this. why would the rear brake pads be made this way. Heat dissipation maybe? Seems like you would waste clamping power till mid life of the pads. Everyone else's OEM pads look like this?

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[1 old racer]

wow, I got nothing

 

[Norm Peterson]

Best guess is that it eliminates some vibration frequency or "moves it away" (frequency-wise) from where it would be noticeable. When pad edges are chamfered like that, it's typically for noise reasons as well, at least for the early stages of pad wear.


Norm

 

[PoppinJ]

Best guess is that it eliminates some vibration frequency or "moves it away" (frequency-wise) from where it would be noticeable. When pad edges are chamfered like that, it's typically for noise reasons as well, at least for the early stages of pad wear.


Norm

This is really interseting to me. I never thought about the noise aspect. Ive always heard that Mustangs preform better on the track with a lesser pad in the rear, so I assumed the design was to just give it less surface area/clamping power. When I swapped out rotors and went to a race pad that is more traditional in design, not slopped like the stock one, my brakes are MUUUCHHHH louder now. Also have stuff like diff busing inserts, toe bearings ect to transmit noises into the cab.

 

[Norm Peterson]

Brake noise is a big matter at both the OE and repair industry levels - very few drivers are willing to put up with brakes that sound like an old school bus or trash pickup truck.

Coincidences being what they are, the April 2019 issue of 'Brake & Front End' magazine (a repair industry periodical) that was just dropped on my table this morning headlines yet another brake noise article in big bold lettering on the cover.


Norm

 

[jacknifetoaswan]

Brake noise is a big matter at both the OE and repair industry levels - very few drivers are willing to put up with brakes that sound like an old school bus or trash pickup truck.

This, right here. My wife bought a MB C300 with the AMG Sport Package (not C43 or C63 AMG), and she kept complaining about the brake noise. She didn't realize that the sport package came with more aggressive brake pads than she was used to on her previous MBs. It goes away once they're warm, but I can imagine a lot of complaints by wives whose husbands convinced them to get the sport package and they didn't realize it would come with stiffer suspension and louder brakes.

JR

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