SPEEDFACTORY RACING K SERIES SHIFTER SPRINGS - DRAG SPECAt SpeedFactory Racing we understand the frustration of the common 2 3 2 and dreaded 1 2 1 K Series transmission mis shifts, and we have the solution. The SpeedFactory Racing K Series Drag Spec Shifter Spring Kit is the strongest available (over 200% stronger than OEM springs) and gives your shifter a firm, positive feel and returns the shifter to the center position with authority which improves shift accuracy and speed while rowing through the