Re: whats this used for??
If you check with a dealer, they may give you the part number for it. They list it as a luggage cover. The part number for a 1993-97 blue luggage cover is F47Z 1345440 AAK. I don't know if this will still fit the '99, but they should be willing to give you the number for the cover to fit yours and match your interior. You may want to check some salvage yards to see if you can take one out of a wrecked truck. The last price I have for a new one was $214.22.