I need to install tie rods but need help with it. How far does the tie rod screw into the inner joint? How much of the outer joint should the tie rod screw into? Do the nuts on the inside but up to the tie rod? Any help installing and adjusting would be great. Also, I read somewhere that there is upposed to be a flat side to these tie rods but the ones on my 08 don't have a flat side at all. I guess it was for a wrench to adjust it?