The last major service performed was at 60,000 miles. But since that service, oil changes have been performed, drive shaft assembly replaces, coolant pipes replaced, and both fuel pumps replaced. I recently replaced the 2 front air filters as well as the pollen cabin air filter. I wanted to know if I should replace the spark plugs, serpentine belt, thermostat, and anything else you recommend. As I said, no major service had been done except for oil and air filter changes. Thanks so much!!