Charles Cox

Hello all, I'm new here. I found this forum by accident while trying to do some online research. I picked up a 2006 Land Pride Treker 4410 at a farm auction. It's a one owner UTV in pretty good shape. It runs and drives fine except it will not start out moving forward in 2WD. I have to start it moving in 4WD and once it's moving forward, I can switch it down to 2WD. If I try to start out in 2WD the engine revs but the unit will not move. Does anyone know what could be causing it? I'm thinking maybe a differential actuator? I know less than nothing about these units. The only thing I've been told so far is parts may be hard to come by. Any help would be greatly appreciated. Thanks in advance.