I've been meaning to start this thread but I wanted to try some things before doing so. The issue I'm having is that I'm getting locked out of 4th gear at rpm's above 6900. I normally shift at 7000-7100 in every other gear but 4th gear doesn't allow it. I have to shift at 6700-6800 to get it into 4th which is a pain having to worry about that. I've heard of people getting locked out of 3rd but never 4th. If anyone knows the cause or what I can do to fix it that would be great.