What should I look for when shopping for a 1999 to 2002 F350 automatic turbo diesel? What costly maintenance items can I expect and at what mileage do they kick in (i.e. timing belt, injection pump, transmission, turbo, etc)? I was an auto tech years ago and know the basics, I just do not know the particulars for this model. These trucks are often used for construction and are driven hard. Thanks for your help.