I will be doing the 5-speed conversion soon and was just doublechecking the list from Mustangworld and came across a part I am not sure of .
It is the Pivot Ball , I located several online and noticed there are different sizes .
What is it , what does it do and what size do I need?

It is the Pivot Ball , I located several online and noticed there are different sizes .
What is it , what does it do and what size do I need?
