Disconnect the cables from the negative terminals of the batteries. Drain the engine oil. Raise the vehicle and support it securely on jackstands. Remove the oil dipstick. For 2WD models, remove the fan and fan shroud. Remove the starter. Remove the transmission. Remove the flywheel housing and the driveplate. Remove the steering gear mounting bolts and lower the steering gear. For 4WD models, unbolt the radiator shroud but don't remove it. Attach an engine support fixture or a hoist to the engine lift brackets with a chain. Raise the engine slightly, then remove the front engine mount through-bolts. Continue raising the engine until sufficient clearance is obtained under it. Remove the two bolts from the front of the engine block support. Remove the oil pan bolts and use a putty knife between the block and the pan to break the gasket seal. Lower the pan to access and remove the two bolts retaining the oil suction tube near the front of the block. Lower the suction tube into the oil pan and remove the oil pan and suction tube together. Clean the interior of the oil pan with rags and solvent and clean the oil suction tube. Also clean the pan mounting surface of the block of any sealant, gasket material or oil. On the engine, apply a small bead of RTV sealant to the block and front cover joints, and the block and the rear seal retainer joints. Attach a new gasket to the oil suction tube mounting flange and place the suction tube into the pan, with the mounting flange at the front. Raise the oil pan up next to the block and attach the oil suction tube to the block. Install the oil pan. Tighten the bolts, starting in the center and working towards the ends, to the torque. Install the oil pan drain plug with a new sealing washer and tighten it to the torque. Refill the engine with new oil. The remainder of installation is the reverse of removal. Start the engine and check for oil leaks.