8 3/4 Castings
#2
Mopar Fanatic
Did you mean: will a 489 center section fit into a 8 3/4 housing that had a 742 center section in it? Yes! any center section will fit into a 8 3/4 housing. If you meant to change parts from a 489 to 742 center sections the answer is no,they use different parts. Hope that helps!