Hi Guys, I was wondering if someonecan help me out here. The other day I was plowing and noticed that it was spinning qute a bit. But when I started to slow down it seemed that the 4x4 would engage and then all 4 would lock in again. Then when I sped up it would start spinning again, the only time it seemed that the 4x4 would work is when I slowed down. There is no grinding or noises coming from the front. Thanks