4x4 4WD fuse issue not atc fuse

[406chevy]

I have a 99 Silverado 1500 with the floor shift transfer case. I’ve been having an issue with my 4wd fuse on the interior fuse panel. Whenever I turn the key the fuse instantly blows wether I’m in 2wd or 4wd hi and low. I’ve seen around that that fuse is for the front axle actuator so I looked around and couldn’t find any obvious shorts, could it be a short in the motor itself? 

[riverbanks]

Very possible, unhook it,fuse still pops, wiring