Hi guys, hope all is well. I've noticed my auto box has started to get difficult to push into park and equally difficult to get into 2nd and 3rd. It still drives and moves up and down the gears beautifully. But pushing it into park is now quite difficult. Anyone come across this? And.... How in gods name do I get the auto gear knob off. I've unscrewed the black button in top but it's not moving. Any help as always greatly appreciated. Thanks again in advance. Joe.