Spleen. It's the center part of your torque converter that links to your engine. Mine was stripped to damnation when it completely went out out gear while doing 80mph on the freeway some years ago. I eventually had it fixed by one of Gregg Dupree's guys. I initially took it to Level 10 and they missed it completely. But this guy found the problem within a day or two.
"I haven't had the reason or opportunity to be aggressively creative until now... So who's next?" -- Iceman/Uncanny X-Men #300 :