I would like to know more about this issue as well. My Keisler and TTIs are being shipped as we speak. They should arrive within the next week, and this makes me very nervous.

I thought the trans was modified so that you did not have to alter the drive line angle. i.e. notching the rear shift mount to clear the torsion bar cross member.

Can you post a pic of your clearance issue so I can better understand what I am about to walk into?