Rear Engine Plate...

Are you talking about the access plate to the transmission bell housing? (This lets you access the torque convertor bolts, inspect the teeth, etc)

If so, they are not highly critical, but I would probably put some thin foam back on there (most hardware stores) to keep the water and mud out as much as possible.

I have seen a lot of beaters with no access panel remaining.

If you are talking about something else, please advise.

I think we are talking about the same thing... On a 2002 Ford Taurus it is held in place by one bolt and the starter... If you want to see a picture of the item, you can see it at:

We are talking about the same thing. That foam is there to keep water and mud out. I would see if I could find some very thin strip foam and replace it.

Not needed.

It may or may not be needed depending on where you drive. In extreme dust areas, it may help extend rear seal and trans seal life by reducing exposure to dust. It may also help reduce the salt spray where de-icing material are used on the roads. It won't hurt anything by being installed.

Lugnut.

Thanks!!!

Thanks!!!

Thanks!!!

Well, that is what I indicated in my first post, but it doesnt hurt to put something there, and might even help.

I would hate to tell someone to do something a little bit shoddy, even though it is not likely needed.