2008 Silverado - Abnormal Front Brake Rotor/Pad Wear

[wheelsthatgrip]

Hello All,

 

At approximately 38000 Miles I changed the front brakes on my Silverado. I installed Raybestos R-300 Performance Rotors (http://www.raybestosbrakes.com/magnoliaPublic/home/products/rotors/r-300-performance-rotors.html) and Advanced Technology Brake Pads (http://www.raybestosbrakes.com/magnoliaPublic/home/products/brake-pads/advanced-technology-disc-brake-pads.html). Now at 70000 Miles I started hearing the wear indicator on the brake pads go off so I decided to investigate. This is what I found:

 

 

As you can see, the pad was only making contact with about 50% of the Inboard rotor surface. It appears that the pad was worn away in the area where is was not making contact. Although the front left was more severely worn, the front right has the same exact issue. The Outboard pads had less wear and the surface contact appears normal.

 

 

 

I inspected the caliper, pad frame and clips for anything abnormal. Other that some surface rust, all looked OK. The Calipers were moving freely on the pins (which were still well greased) and the pads did not appear to be sticking at all on the frame clips. The pistons pushed back into the calipers easily and do not appear to be sticking. Up until the squeal of the wear indicator on the inboard pads, braking force felt adequate (Apparently it was not with only 75% of the pads touching the rotors)

 

I replaced the rotors/pads/clips/pin bellows with new and purged/bled the system. All normal. I plan to contact Raybestos for their opinion on what might have caused this. I am disappointed with the lack of longevity I got from these brakes; poor value for the money spent.

 

Have any of you experienced this abnormal wear?

 

Regards,

 

Keith

[rdnkcpa]

That happened with the rear rotors and pads on my truck. I rebuilt the calipers, put new rotors and pads on, and replaced the brake hoses. That has cured the problem.