I don't know if it would fit or not, but even if it did, it would look pretty funky on your truck. I have seen that style of bumper on a 93-97 style and it didn't really look right. For all I know, they may have changed something in the frame rails when they changes to independant suspesnion up fornt in '98, making it a bit harder to mount one.
But anything will fit with enough fabing.