i have a 88 4 runner with a v6. it had the automatic front hubs, but i changed them to manual locking hubs. on 4 runners when the truck is in 2wheel drive is the front axel and driveshafts suppose to spin freely, if they do what would cause them not to. or do they constastly spin and only engage the front wheels when the hubs lock. also my front tires turn if the hubs are locked or unlocked what is the problem there. i also have a front tire that will not spin at all. i checked and made sure that the brake is not dragging its not. the axel shaft and tire are frozen what would cause that.