Super bowl sunday i was on the way to a party and when pulling off the highway tried to shift from 2nd to 3rd and nothing happened. The shifter just flops around now. Luckily i have 2nd gear and was able to drive it slowly home. I tried to move the counterbalance on the tranny itself to try to shift gears but that just flops back and forth. So pretty much my conclusion is that everything from the linkages back is fine and now its something internal. Where should i begin in further diagnosing this? I searched for some info but didnt really come up with anything conclusive. Any help is appreciated.