Broken Shifter on 2001 Chevrolet Silverado.

i have a 2001 Chevrolet Silverado. it has a broken shifter spring I was just wondering what part I need to fix it. attached is a photo of the broken spring, I was just wondering what part I need to fix it,as it is very dangerous to drive and it may become un-usable. i am aware that i need a new spring, but i dont know what part the spring is actually in.