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I'd like to help - but your post doesn't make sense to me. Could you express your observations in different words?
This puzzles me. Rust tends to suggest lack of use - yet the pads are worn out. My guess is that the caliper on that side is stuck. It used to stick in a way that caused excessive wear, but now it's stuck in a position such that it no longer engages.My rear right brake disc is in bad shape, rusted, and the brake pads are almost finished. The rear left side looks great, I would say those pads look almost like new, same for the brake disc.
I don't know if they were designed with that intent......more of a result of the systems design.My dad had a thing against disk brakes. He said drum brakes were designed to prevent problems with contamination.
I'd love to do it myself. Unfortunately, time is a factor and I don't have much (if any free time) at all. I am currently in the process of purchasing my first house as well.Do it yourself - easy & way cheaper.
If the last time they were off they were not put on on exactly right or the noise clips were not seated properly, that may have exacerbated the issue. About every three or four brake jobs I do end up with a bit of uneven wear on one side. I think usually when I'm in a hurry as it is either freezing, raining or right before work some one says - my brakes are making funny noises...
2014-15 cruze diesel uses the 292mm rear rotorsFor anyone still having this issue with uneven wear on the rear disk brakes, I've had this issue twice. It's looking to be the caliper pin that has the rubber, GM PN 13584090. The first time this happened the brakes on the rear passenger side were fine, but the driver's side wore down to the metal. (around 50k miles) I replaced both side, pads and rotors and made sure to clean out the caliper pins well, and lubricate them with the special disk brake caliper lubricant designed for high temperatures.
Now I've had the issue now a second time (around 70k miles) The driver's rear pads are completely gone and again the passenger side is fine. Despite having lubricated the caliper pin, one of the caliper pins seems to be binding again. It's almost as if the rubber on the pin has expanded and is causing it to bind. Only one caliper pin has rubber. The one with rubber attaches to the low-frequency noise damper. As an experiment, I'm going to file down the rubber to provide additional clearance for the caliper lube. The caliper itself does not appear to be binding up anywhere.
Also worth mentioning there appear to be two different rear rotors. Mine is 265mm, not 295mm.
Caliper pin with rubber: GM PN 13584090
Low-frequency noise damper: GM PN 13343688
Stock GM Pictures can be found here