This is what I did. The rod itself is basically screwed all the way in, and I just moved it a spline or two on the main spline. Lowered it perfectly.Not necessarily... I ran out of adjustment on the linkage rod before getting the shift lever lowered to where I wanted it to be. I had to rotate the arm one spline to lower the shift lever, so as to end up with the threads on the linkage rod fully engaged in the rod ends. What you don't want is to have the linkage rod hanging by just a couple threads in the rod ends.