Found a thread you may be interested in, Clayton:
http://www.1addicts.com/forums/showthread.php?t=9872
/me updated his user title as well. :wink:
EDIT: You know, this post brought it all together for me... If you're going to be hauling stuff with the car, it only makes sense to have the same kind of transmission as a big ol' semi. Sure there aren't more than 6 speeds in that? Next you're going to tell me you're having the rear coils replaced with some heavy-duty leaf springs!