Cj that is incorrect on the 400ex hubs on the 24 spline axles spence and I proved that one wrong.
Well i skipped school today so i'll go out and try it for myself because I put my 200X hub on my 24 spline 87 axle, and it fit,,, i know the 400EX fits the 90/110/200X/1st-2nd gen R's. So We shall see