Brake trouble

I take a look at my brake pads yesterday and I saw that only the inside pads of the 4 were finished, that the 2 on the outside were still 80% good. Does anybody knows what's the problem?

Peace y'all, Raph...

make sure the sliding pins on your caliper can more freely.

Are the sliding pins are the one that we screw the calipers into?

Peace y'all, Raph...

the sliding pin are the ones with rubber at each end,one has a bolt going through it,the other one is a pin that the caliper slides onto

That's what I tought, and it's moving freely as well. Thank you for replying, I think for this one I'm gonna call my garage.

Peace y'all, Raph...

If the pins are sliding freely...you probably have a bad caliper. I would go ahead and replace them with loaded calipers (pads & calipers)