Yes it is a double lip seal. The "TB" at the end of the part number designates double lip, while "VB" designates single lip. I bought them at CARQUEST and they have their numbers on them. I am going to log the bearing and seal info for future reference when I pull the hubs for brake work or repack. There are kits I believe that have everything included in one package, seals, races, bearings, cotter pins, etc.. A bit more research looks like.
2004 F150 4.6 Griffin tuned
2010 Wildwood 24FBS