Brakes quick question

[alaskaman]

5 months ago wear on front was 7 rear 3 now getting indicator noise. Fronts were replace 2 years ago with not factory or less quality and they wore out in 20k miles. replaced with OEM and they are good. Any ideas what the bad pads?

 

[riceandpho]

5 months ago wear on front was 7 rear 3 now getting indicator noise. Fronts were replace 2 years ago with not factory or less quality and they wore out in 20k miles. replaced with OEM and they are good. Any ideas what the bad pads?

it could be some stuck piston in the caliper. also when you do your brakes, do you do the fluid too?

im still on original calipers, havent had any problems, unlike others here that lives in the rust area/salt. im in the northern california, so no rust issue.