Hello Everyone, Me and my dad are looking to purchase a M20F. I was in contact with the CEO of the flight that I trained at and he said one thing to watch with the pre J models is that the tube gear rust. He made it sound like its a common problem with ALL the pre J models. Basically I wanted some feed back from Mooney owners, is it a common problem? is it something that needs to sway our decision or is it some thing that can be checked fairly easily and be repaired if need be? Thanks Everyone, Brad