Hello, Need help!! I have a 97' f-250 HD 4x4 extended cab truck with 5.8 engine. I found a leaking rear inner wheel seal while servicing the brakes. The seal that is on the truck now is a two piece design with a inner race that gets pressed onto the rear spindle. I have searched online and at all of the local parts places and can not find a similar seal. I have found the one piece seal from national seal Part# 370047A. This is a one piece seal and does not have the inner race. Will it work or will I have to find a two piece seal. I have never had such a difficult problem finding a part for such a common truck. Any Help!!