RV, I took it to mean that when the Dynalocs broke that the hub would be engaged, just as if you did not have locking hubs. Everything would be turning all the way back to the transfer case (just as stock) and 4 WD could be engaged and you would HAVE 4 WD. If the Warn hub engagement broke, then you would not have 4 WD period. I had rather turn the whole shebang and not need it than not be able to engage 4 WD in a jam. I hope someone will chime in if I am wrong on this. Mark