[Tincan18]

I have a 1994 Ford Mustang Gt. The Tranny has been rattling for a long time i took it into a mechanic and he said its my torque converter. It is pretty expensive to fix so i just was wondering, does having a bad torque conver, and i mean really bad converter. does this affect the performance of my car? If it signifcantly affects it i am definitly getting it replaced ASAP. If it is something that i can just get by with then it will be on my list just not at the top. What should i do? and how does it affect my performance if any? Thank You