Hey Bill, I found this on the FFCars site. I hope this can shed some light on the matter. I know that a lot of guys over there have had trouble installing the center section Notice that it has to be twisted and moved forward as lifting with the jack. An extra pair of hands would be a great help. Good luck, and remember patience.
John O
Installation of the IRS Center Section-How to - FFCars.com : Factory Five Racing Discussion Forum