Front Brake Pads not wearing-calipers not frozen

[GLP]

It has been 80k miles since I replaced my front pads. When I checked the passenger side the other day it still had .200 pad material remaining. I was able to push both cylinders all the way back in so it didn't appear that the caliper was frozen. I've got 175k miles on these calipers. I haven't really noticed a difference in braking but the rear pads have been wearing faster. Any ideas?

 

[djlandkpl]

I'm in the same boat. I replaced both front and rear pads about 60,000 miles ago. At the time I replaced the front calipers (seized) and rotors. Over the last year, my rear pads have been wearing significantly faster than the fronts. Didn't make sense since the fronts do the bulk of the braking.

Last week I checked the rear rotors for runout and both were warped and the backside of the rotors were scored and rusting apart. When I took the pads out, the shims had rusted to the point there was nothing under the caliper piston. Being in San Diego, you might not see that amount of corrosion on your brakes. My gut tells me the condition of the rotors led to the premature wear on the pads.

I'm not sure if it's the answer, but you might want to pull your pads and rotors for inspection.

 

[GLP]

Thanks djlandkpl for your input. So far I haven't seen any corrosion on my brakes. My rotors, pads, and calipers looked pretty good. I have replaced front rotors before due to warping but my braking is pretty even now (no pulsing).

I am thinking there is something wrong with my front calipers, but they are not frozen from what I can tell. I hate to replace them only to have my front braking to stay the same (pads not wear).

 

[WXman]

This was a common issue on the Jeep JK forums also. The rear rotors are smaller, therefore more braking input needed to get the same force. Also, the traction control system can cycle the brakes at times and this increases wear too. In the old days, the rear brakes would last 3x longer than the fronts. With today's fancy systems and little rear disc setups it's going the opposite direction. As long as you're seeing even wear side to side and normal braking feel, I wouldn't worry bout it.

 

[nevada]

in modern 4 wheel disc brake systems, the rear can do much more braking than we're used to.
and ive seen many that will wear the rears out long before the fronts.

 

[cparise]

GLP your in cali that's the difference here in Massachusetts we have harsh salty winters I have an 03 runner with 39,000 miles and ive done pads and rotors twice and calipers once.