I tried today to adjust the linkage. It was at a 45 degree angle, which is the center mark on it. I put it down as far as I could as recommended on here. The farthest it would go down to was an L shape 90 degree angle. I have no idea how it could possibly go down any farther to look straight. Any ideas? I'm sure I was adjusting the right thing. It was a star shaped 10mm nut. Thanks for any help.