Just a 318 car, but will be replaced with a 340/360 this summer. I do have the original linkage from the 3 speed, but it is not compatible with a 4 speed. If a guy was driving the car and the key got pulled out, wouldn't the wheel lock up then? Not so much worried about this when I am driving, but this is a father/son project and you never know what kids could do while horsing around. My other thought was if I could remove the tube, I could replace the lower bearing with an er-16 like others have done.