John, I would just order them from TA and save the guess work. Timing cover seal should be the same as a V6 - 3.8l. Rear ?
I don't know the N.S. number, but the seal can be bought just about any where. I wish I could remember the fel-pro number off the top of my head but I can't. You can get the seal from Napa for $14.00 The part number is NGAJV618. I think that it is a little cheaper at Pep Boys but you will have to do a little searching with them at the parts counter. The seal is actually for a ford. The number that you will find on the seal will be D2VE-6701-AA. Good luck. If you need the seal today you can get it. If you would rather order it from TA you will have to wait until next week.
