I had the steering shaft loose on the box, but couldn't compress it enough to install the extension. Looks like I'm going to have to take the column out & have some machine work done. If you have taken the slip joint apart, there are 2 square pieces that fit on 2 pins on the lower shaft. I lost 1 of the square pieces when it came apart. I may end up fabing another ujoint up near the firewall & a different style slip shaft.