Can you explain what happens to the extra half inch of lengh on the shackle? Does the front end sit slightly higher, or does the shackle tilt back a little more than stock? A combination of the two? I'm just asking because I can't really picture the physics of it to predict how it works. /forums/images/graemlins/tongue.gif The web page mentions that it affect caster angle and may influence the amount of highway wander. It tilts the pinion down then? Funny thing is, I have a shim in there to tilt it up. But I do wander some on the highway.