I'll chime in here too... I was going to get one of these and install it on the Roadster when I first got it because it was driving so poorly. After talking to a few friends with straight axle experience and reading several articles on the supject I decided to re-adjust and re set up the front end... Once it was set up correctly it drives like a charm and never have had any other problems since...

I agree with the others that have said it is not needed...

Just my 2¢...

Dave Brisco