Remove the transmission and, for models with a manual transmission, take off the clutch housing. Mark the relationship of the flywheel/driveplate to the crankshaft to ensure installation in the same position. To prevent the crankshaft from turning, wedge a large screwdriver or prybar between the ring gear teeth and the engine block, ensuring the tool bears against the block as the crankshaft moves, without pushing against the oil pan. Remove the flywheel/driveplate retaining bolts from the crankshaft flange, then pull the flywheel/driveplate straight back; if it's stuck, wiggle it from side to side. Inspect the flywheel surface for scoring, heat marks, cracks, and warpage. If any issues are found, take the flywheel to an automotive machine shop for resurfacing or replace it if cracked. Installation is the reverse of removal, with retaining bolts coated in thread-locking compound and tightened in a criss-cross pattern to the specified torque.