...(1999) 3.5HO motor? the car is just shy of 100,000 miles. when i bought the car at 50,000 miles, i had belts/hoses etc done. Should i go ahead and redo those also? i change oil every 3500 or so with Royal Purple. But what should i have checked or replaced at this tune up. ive been told timing belt and water pump, but what about hoses/belts/fluids, spark plugs and wires etc? im in delaware (usa), what can i expect this job to run me approx?