A loud clunk when I reverse and step on brake and shift to drive does anyone know what I need to do to fix it by chance???

What is your question?

A loud clunk when I reverse and step on brake and shift to drive everytime I drive my car

What makes this problem better or worse?

Not sure still trying to figure it out

How long has your 2001 Pontiac Sunfire had this problem?

Since I purchased the car