2017 Nissan Altima SR 2.5L
I replaced brake pads less than a month ago because I was hearing a grinding noise in the rear. I was shocked to see that the pads had approx half life left in them. Went ahead and put new pads on. Since then, I've had terrible vibration when braking and not braking.
Fast forward to today. I replaced the rotors today because I knew it was time. I did not clean the rotors before install as I've never done before and had no issues in past. All vibration is gone now. I drove 45 minutes home after install and noticed when coming to a stop, that very last second before you come to a full stop, the pedal pulsated a little bit and seemed to require a little extra force to make the car want to fully stop without letting the car roll forward a few more feet than I wanted it to. I hope I explained that in a way that makes sense. The road that goes to my house is a little downhill, so I'm pretty much riding the brakes for a minute and then I turn into my driveway. I pulled in my drive and shut the car off. I opened the door and immediately smell burning. Both sides on the front are smoking!!
I've done some research and noticed that it is somewhat normal to see this, but I've never had this happen before so I'm a little concerned. Pictures below. The front doesn't look like they've been used at all. On the back, you can clearly tell they've been used.
I guess my questions are:
Is the burning/smoking normal?
Is the wear on the rear rotors normal for a 45 minute drive on the new rotors?
Should I be concerned that there is no evident wear on the front but there is on the rear?