since no one replied here is what i am going to do
there is a link for making your hubs into push button lockers-it is a easy thing to do-no more vacuum hassles (will the disabled vacuum lines mess with the truck?) it involves cutting out the center hole screen and plastic supports-then one can push the hub center in to engage and half push in to disengage -here is the link
Adding Manual Control to your 1998-2000 Ford Ranger Pulse Vacuum Hubs .: Articles
1st question is-since taking out the center cover of the hubs-if and will water get in the hubs and ruin the innards ?
2nd questionis when i engaged the passenger side hub and turned the hub which in turn turned half shafts to transfer case i could feel and hear the transfer case click /vibrate/hum(this project started because of severe hum which increased with speed load and no load) i have not checked oil level in transfer case yet....so if case is bad and hub/s were stuck in gear because of faulty vacuum lines(remember they are corroded) and was not truly freewheeling because of vacuum line-could the T Case be causing the Hum ?
why would it stop when turning right at high speed?-or is it still a bad bearing?
inquiring minds want to know-Thanks Spud