Re: rear eng or frnt trans seal
usually it's the main seal. You may find a wear groove in the crank. If it's significant, reposition the new seal in the housing so it hits new metal. Any engineering or bearing supplier should be able to get the seal, it's in all the reference books. Don't buy the OEM seal you'll only pay three times as much for probably the same seal. Since you have to drop the sump, make sure the front seal isn't leaking. if it is do that at the same time.