Hey guys, I’m new to the forum, so apologies if this topic has been covered before. I have a 67 couple with a c4 auto and when shifting, it slides through the gears without having to push the shifter button. It doesn’t lock when it’s in park either. Do I need to replace the entire shifter, or just the lever? Or is there another part I’m not aware of that I’m missing? Thanks for your time everyone!