Fluid Change
The normal schedule is 30,000 miles for vehicles under 8600 lbs. GVWR OR 24,000 for vehicles over 8600 lbs. GVWR. If vehicle is driven in heavy city traffic where outside temperature regularly reaches 90°F or higher, in hilly or mountain terrain, is used or frequent trailer pulling or is used in taxi, police, delivery or other commercial service, maintenance schedule for drain and refill is 15,000 miles for all vehicles under 8600 lbs. GVWR or 12,000 miles for vehicles over 8600 lbs. GVWR. Change fluid and filter as follows:1. Raise and support vehicle.
2. Place a suitable container under transmission oil pan, then remove attaching bolts from front and sides of oil pan.
3. Loosen rear attaching bolts approximately four turns, then carefully pry oil an loose and allow fluid to drain.
4. Remove remaining bolts and separate oil pan from transmission.
5. Drain remaining fluid from pan, then clean pan and gasket surfaces with a suitable solvent and thoroughly dry with compressed air.
6. Remove the filter, spacer and intake pipe. Install filter assembly with spacer, using a new intake pipe O-ring and torque retaining bolt to 8 ft lbs.
7. Install oil pan with a new gasket Torque attaching bolts to 8 ft lbs.
8. Lower vehicle and add 5 pints of Dexron II or equivalent transmission fluid through filler tube.
9. With transmission in Park start engine and run at idle.
10. With brakes applied, Move transmission through each gear range and return to Par position, then recheck fluid level. Add additional fluid to bring level to full mark on dipstick