I'm new to this site, so forgive me if this question has been asked already. I have a 1997 Land Cruiser with locking diffs. The diffs engage OK, but disengaging them is very difficult and can take a long time. Last week, I couldn't get the front diff unlocked and driving home on the road was almost impossible. Thank God it was only a few miles. I parked the vehicle over night and the next morning, the front differential finally unlocked. I've only owned this vehicle for only 3 weeks. I bought it from the original owner. The previous owned took excellent care of the vehicle, but he admitted that he had no idea what a locking differential was, so he never used it. Is it possible that it is getting stuck from not being used? Has anyone else out there ever experienced problems DIS-engaging their diffs? I appreciate everyone's feedback. Thanks!