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Posted

So I did my front brakes today and when I got the old rotors off the back side of them seem to have some missing little divits like a delamination in the metal. The outer side had little pinhole spots. The backside also showed where only the center part of the inner pad was rubbing against the rotor. So there was a 1" strip where the pad was gripping against. Seems that the rotor warped in an odd way?? Does anyone know what I am talking about?

So to finish up, 2 new rotors and pads and a cleaning of the rear brakes and some new lube on the contact points since the rears still looked pretty new. I went with the Duralast C-max ceramic pad since I had awesome results with them on the wifes minivan. On the truck they seem a little softer then what I took out, but I dont know what they were. But I stopped straight and no more wobbles. And I was sort of impressed with having the dual piston PBR calipers, where did these come from? They installed PBR's on these trucks?

Posted

PBR is aftermarket part so its been installed from someone else before you if,Ialso did my brakes new slotted rotors,new PBR pads,cailpers.Paddle is softer.my old rotors where paper thin someone gerry rigged the front braking system on it them resurfeced the shit out of it.

  • 2 weeks later...
Posted

I just stumbled on this thread looking for info for my upcoming brake job, but I can tell you in the mid 90s GM was using PBR rear calipers on some cars.

Posted

Some of those trucks had dual piston calipers...doing any parts lookup for brakes (for my 2004 for instance) will bring up options for dual piston rear calipers. I think all of them have dual piston front calipers.

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