no four wheel drive

I have a 05 Chevy 2500 4x4 lly and I just replaced the transfer case and before I did I had power to my control module that’s mounted on the side of the case. And when I got the new case in and everything plugged up I went to check to make sure everything was functioning properly and my...

got a 2003 lly, when i select 4hi the light blinks, and engages. but the front drive shaft will not have power. when in 4hi (without the truck running, but the key on) i can spin the front drive shaft and the front tires turn. when i put it into 4lo again the front drive shaft can be spun and it...