I just took off the hub/drum assembly from my GM 14 bolt, full-floater to look at the brakes. It only had the adjusting nut on the spindle including the key and key-retainer ring. Is this normal or has some turkey done a bad servicing in the past? The reason I as is that the Haynes manual I'm using talks about a locknut. They don't show any pictures tho. I've got a Chilton's manual on order so I can cross match it with the Haynes on things like this. Thanks in advance!