I have a 1958 T-Bird, I have a problem with the column gear shift lever staying in place. It is also sloppy at best when selecting gears. I have replaced the steering column, the shift lever, the upper bushing and bearing and just about everything I could buy to tighten it up, the springs on the linkage have been replaced etc. The trans has also been rebuilt it is the original cruise-o-matic and the lever is solid when shifting through the range manually without the linkage hooked up. The really dangerous part is that when in park at idle it can by itself drop down one gear into reverse and just take off. Anybody know what to do to solve this problem??????