I purchased my Blazer used with only 10K miles on it. I had no problems with any of it until about 120,000 miles on it. Battery, front wheel bearings and transfer case actuator went out in the same year. I replace all the parts with new and have had no problems since. The dealer could not believe this was the first set of bearings on the front since many others go at about 60K. This truck does not burn oil (engine is very reliable). Wish the fuel economy was better for a truck of this size (avg 18MPG city and hwy). Overall this blazer is inexpensive to own considering the cost of new and the relatively inexpensive parts. I would recommend a Blazer to anyone needing 4WD and 4 doors.