The FJ-2 was a derivative of the F-86E and the FJ-3 was a derivative of the F-86F.
Interestingly enough many parts of the original straight-wing FJ-1 were based on the P-51. North American then used the basically unchanged wing of the FJ-1 as the basis for the T-2 Buckeye trainer.
But you guys knew that, you guys know everything.