This is what I did to an 89 240, if it helps:
Spark plugs, Spark plug wires, Distributor Cap, Rotor, Air Filter, Check Belts, Check Hoses, Check Vaccumm Lines, Check Water in Battery, Check/Fill Brake/Power Steering/Windshield Washer/Oil/Transmission fluids, Grease lube points, Fuel Filter, PCV Valve, O2 Sensor, Flush/Refill Radiator Fluid, Drain/Fill Differential Oil, Finally pull the ECU Codes to make sure that everything is running right. If you need exact specs a chilton repair manual tells exactly what needs to be done when.
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