UPDATE: i had that switch installed and at first my 4wd still did not work so the mechanic "adjusted" the actuator cable and everything worked great. went in and out of both 4hi an 4low perfectly. Later that night, on my 7 hour drive to north Tennessee, i hear a weird whining noise. i pressed the 4 hi button and it stopped, went back to 2hi and it started making the noise again. i pulled over and what i deducted was that my 4 wheel drive was still half way engaged if you will. After many attempts to disengage it by shifting in and out both the high and low range, i ended up puling my battery and actuator out. i disconnected the actuator cable and pulled on the end a few times to maybe try and get it unstuck. put it all back together and shifted to 4 low and then back to 2hi and i never had a problem the rest of the trip or the way back. except for now my 4wd doesnt work. AGAIN. this is frustrating. i think im going to replace the actuator cable and see how that goes. any thoughts?
EDIT: turned the truck on and pulled the battery and tray out to take a look. i noticed the vacuum hose wasnt connected so i reconnect it thinking i found my problem. nope. more noises when driving around. so with the truck still on, i look in and the actuator looks like so but i am in 2hi
so for kicks and grins i press 4hi and it looks like this
from what i read here http://www.s10forum.com/forum/f220/4x4- ... nd-506164/
i think maybe my brand new transfer case switch is defective. so i guess ill put a new one on and hope the gears in my transfer case arent all stripped out. im thinking that the reason the noise stopped on my road trip was because i forgot to connect the vac hose back to the actuator.