I have a '74 3/4T Dana 44 that had the drive flanges on it I want to put Warn premium locking hubs on it. It currently has the external style hubs should I leave these or swap out for the later internal syle? I do have a set of the hubs off I believe a 8 lug 10B, but dont know if I still have the spindles etc. or are they the same? The outside dimension of the inner bearing looked bigger on the external D44 hubs which leads me to believe the spindles and maybe outer axle shafts are different. I dont beat this truck hard it only has 285 BFG AT's on it mostly sees some mild trails and highway. Thanks in advance.