Trying to figure out why the 4wd is not working on my l245dt. When I jack the front end off the ground and turn one wheel by hand the other front wheel will not spin when the lever is in 4wd or 2wd, and its the same for both sides. I cannot see if the driveshaft is turning or not because it is in a tube. I recently had the front end off to pull the timing cover off but it slid back on no problem so I figured the driveshaft splines must have meshed up fine to the front diff. Should I loosen the bolts off the front end to make a gap enough to see if the driveshaft is turning? How else can I diagnose where my problem is?