First thing to try is start it and put the shifter in first gear, not drive, and see if it will move if so try driving it, shift through the gears manually to see if all the gears work properly. If so it may be a shift module and it will not move trying to start out in drive or overdrive. If not I would jack up the rear wheels, if it has auto 4x4 jack up all 4 wheels, put it on jack stands and have a friend get in. Have them start it up and keep the brake on. First have them go through the gears while you are under the vehicle and check to see if the the lever on the transmission is moving freely without binding the cable. then unhook the cable and manually move it farthest from the park position. have your friend release the brakes and see if the tires rotate. With the park brake off they should move freely especially if they give it a little gas. If it still don't work you may have a bad pump in the transmission. I hope it works out for you.
