Hello all and to all a happy and safe holidays. My problem is this I have a brand new pred 3k1 for some reason the shaft does not go in all the way it screws in perfectly till theres approx 1/2 inch left then it gets stuck. There does not seem to be anything stuck I have checked it well and have cleaned them both as best as I can with a little rubbing alcohol and a cotton swab. any ideas/suggestions would be appreciated.