I have a 'o3 Busa, Turbo from Hank, and tuned by Dennis. I got a Dyno Jet shifter, and never could get to work properly. Before that it was a solinoid shifter, which Dennis advised me to take off. Well, I was praticing launches, and the back wheel locked on me---almost lost it!! Now I am faced with a locked tranny. First, is this nessary to pull the motor to fix? Also what do you suggest as a shifter?? Thanks for your help!! TBusa John