Rear brakes wearing out first?

[JayAre]

Hi guys, first post here. I've tried searching for the topic, but haven't came up with anything. Earlier this month we took my wife's 2012 SV to the dealership for a rotate and balance. In doing their multi-point inspection, they told us that her rear brakes are in the red (2), and the fronts are ok. Of course they tried to sell us a brake job for 200 something dollars. I can change our own brakes so I said no thanks, and we left. Now that I'm thinking about it though, it's puzzling to me as to why her car with ~27k miles on it, has the rear brakes going out first. Does anybody know if this is common, or if this indicative of a possible larger issue. I seem to have read before about Murano's rear brakes sticking. Just curious. They also seemed to misplace her wheel lock so I can't take the wheels off right now, or I would take a look to see how bad the pads actually are.

Thanks for any help you can provide.

[mrbizness1]

I have a 09 Mo. with 70k. I have replaced the front brakes at 30k and the rear at 35k. I thought I would be good till 135k on the rears but last month at 70k I had them both done. I was surprised the backs needed replacement again. He blames it on the rear pads being to small. Rear drums were always good for 85k plus.

[hatman]

Have experienced the same -- rear pads wear down faster, although they were the same brand and composition as the front, and that seemed strange. Checked Murano shop manual and found part of the answer:

Front brake pad
Standard thickness 9.5 mm (0.374 in)
Repair limit thickness 2.0 mm (0.079 in)

Rear Brake pad
Standard thickness 8.5 mm (0.335 in)
Repair limit thickness 2.0 mm (0.079 in)