2000 GMC Jimmy front drive shaft turns when not in four whee

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2000 GMC Jimmy V6 Four Wheel Drive Automatic 147000 miles

i have a 2000 gmc jimmy 4x4 i went in mud and water and got stuck the truck was sideways in the water on the pass side up to the fender water came in the truck and the right head light was in the water i cant get the front drive shaft to stop turning it wont go in to four wheel drive or just in to 2wd and the lights in side the truck wont come back on to tell me what it is in (like 2wd auto4wheel four wheel hi or low) im not sure what is wrong with this i checked the hoses all look good the actuator seems to work but the cable has no play in it let me now if anyone may no whats wrong