Rear brake pad wear question

[ScubaDriver]

Rotated my tires yesterday since it was above freezing.
I bought my ML used, with 42,000 miles, the brake pads looked recent. The LM now has 76,000 miles. The light came on to replace the pads about a week ago, so I figured I'd check whether it was front, rear, or both. The front pads are very thin (DUH), but the rear pads still look REAL good. I didn't measure them, but they look like they still have about 75% life left in them. Is this normal? I do alot of highway driving, and the brakes seem to work correctly, even on ice and snow. Any help would be appreciated.
Roger

[JimB]

yes, the front pad tend to wear out faster than the rear, 70-80% of braking done at the front so the rear pad will last longer than the front. Changing the front pad is easy..DIY and save some money. I know its cold there but you will be happy when you do it[:)]