4x4 problem PLS HELP
 

Okay here's my issue it started a week ago I got stuck in my yard and I engaged my 4hi and heard the transfer case click I went to drive out and only my rear tires would spin and the front wouldn't so I tried 4lo and the same issue.... so I took it to my friends house put it on the lift and checked the front drive shaft to make sure it and spinning and it was. So I figured tge front axle actuator so I took off the battery and checked my actuator it seemed stuck a little and I unstuck it and it seemed to be leaking something so I put the battery back on thinking I needed a new actuator and I put it in 4hi ran fine heard the xfercase click then I put the truck in drive and it just stalls out. It didn't do that before I need help I'm going to change the actuator I just want expert opinions please much appreciated pls n thank you (: