I have the 700r-4 installed, I realize that my shifter is for a non-overdrive trans... I have looked into the two different shifters. The main bracket of shifter is different, as well as the detent bracket, shifter cable and cable range bracket that bolts to trans pan. Has anyone done this swap and know if I need to change all 4 pieces? I am led to believe I only need to change the cable, cable range bracket and detent bracket. I know the main braket is different but whether or not it needs to be changed I don't know. I have posted a blow-up of the floor shifter with part #'s in my album if anyone can please help me.