Camelback ford has the 2001-2005 oem light tan ones(dark pebble) for $61 brand new for the full set. They want $125 for the flint ones (grey). I bought the tans ones and soaked them overnight in grey RIT fabric die. They are drying right now and came out a perfect shade of grey. The pic on their website shows grey but its the wrong pic!!!!!!! The dark pebble mats are tan!!!
http://fordpartcenter.com/Scripts/prodList.asp?ModelId=195&modelname=Explorer Sport Trac&modelyear=2005&catalogid=1&catalogname=Accessories&idCategory=15