at 26,000 I failed inspection because front brakes worn, dealer replaced them, now at 41,000 failed inspection beacuse front brake pads worn, this time at Merchants auto? whats going on? I have a 2006 2wd, 4.0.
if the drums arent properly adjusted, the fronts are doing more work
if the pads are cheap they will wear fast
if you are hard on the brakes, if you stop too soon, if you drive with both feet, or if you drive like a woman, then 20k could be normal for you.
look at the brakes and see if both pads (inboard and outboard) are worn evenly. if they are not, you could have a faulty caliper or frozen guide pins.
i use wagner thermo-quiet pads, and i have 46k on my front pads and they are a little less than 50%
Check the adjustment of pad wear of the rear drums. If they dont engage the front will be doing all the work. I've had good luck using the Monroe dustless pads. They seem to work decently and wear very well.
I bought my truck at 40k with the pads just enough for another 10 or 20k..or so I thought...I now have 85K on the truck and they still look just like they did when I bought it...Rears still have a ton of material left also. I'd say you have an issue.