The FJ-4B was a ground attack version of the FJ-4 and was in fact built in larger numbers than the original FJ-4. It was similar in concept to the F-86H Sabre, although there was no direct relationship between the two aircraft other than their common ancestry. The FJ-4B differed from the FJ-4 by being strengthened to take six underwing ordinance stations capable of carrying a total of up to 6000 pounds of fuel tanks, rockets, or bombs. It could carry up to four underwing drop tanks (2 150-gallon and/or 2 200 gallon tanks).