I own a 06 jeep commander hemi AWD. My transfer case only drives the rear tires in 4/low not 4/high. It will drive the front tires in either front either 4/low or 4/high. Kind of a weird problem but I found it while changing out the front driveshaft rear cv joint. My question is is this purely a actuator problem? It truly acts like the transfer case is in neutral when the front shaft is removed. It will switch between 4/low and 4/high.