I know this topic has been talked to death but I can't find a straight foward answer. I wanna get the Hammer Shifter for my 98 GT. I told the guy from Jegs I wanna be able to manually upshift and downshift any gear and asked if I would need a shift kit to do that. He said the Hammer shifter will allow me to upshift and downshift at any gear just like a manual. Is this correct? Or will I need the shift kit as well?