The O2 sensor went out at 40,000 miles. The thermostat seized at 60,500 miles and was replaced. The heads were replaced due to warping from truck overheating. Replaced the transmission at 70,000.
Other than the problems stated above this truck was excellent. I loved driving it back and forth from work and home.
Uh, reliability of 10/10??? It doesn't look to be that reliable of a truck to me from your description.
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