Lift the vehicle and then support it on jackstands after which remove the transmission. Put a marker on the driveplate and the crankshaft, afterwards unbolt the bolts that connected the driveplate to the crankshaft. In the case where the crankshaft rotates, slot the drive plate and then jam a screwdriver horizontally into the ring gear teeth. Because of its weight, the driveplate should be supported when the final bolt has been unscrewed; proceed to unscrew the bolts carefully. Wipe clean the driveplate to remove any grease and oil, examining the same carefully for signs of cracks or worn out ring gear teeth, then placing the same on a flat surface to see if it is warped. Check and have the mating surfaces of the driveplate and crankshaft cleaned and if the rear main oil seal is leaking then it should be replaced before the driveplate is reinstalled. Replace the driveplate on the crankshaft in similar fashion to the removal process while centering the part by matching up of marks and proper fitment should be possible using any alignment dowel or a staggered bolt pattern. Cover the threads on the bolt by applying the thread locking compound and ensure then you have positioned the retaining ring on the drive plate while tightening the bolts just up to the recommended torque, you use a screw driver to hold down the teeth of the ring gear to avoid any movement. If the transmission front pump seal or O-ring is damaged or worn it should be replenished at this time. The rest of the installation is the exact opposite of the removal process that has been explained above.