The fact that it tries to move, tells me that only one axle is engaged in the side gears. This would allow the clutches to slip enough to seem like it wants to move the car, but not quite be able to. It’s the only explanation that makes sense to me. If the clutches /plates weren’t in there, the cross pin would be flopping around. In the pic, the cross pin is sitting on the ramp as it should. I have to assume that the clutches are there based on that picture.