The IDIDIT web site has some good information as well:http://www.ididitinc.com/index.html. Another is Borgeson:http://www.borgeson.com/ and a third is Flaming River:http://www.flamingriver.com/index.cf...=cat/cat81.htm.

As far as a floorboard adapter, I made mine from a piece of 2"ID exhaust pipe stock which fits right over the 2"OD column. You can also ask a muffler shop to 'blow out' a piece of pipe if it's too tight - it varies a bit. I then drilled two .375 holes opposite each other then welded on two .250 nuts and put a couple of 1/4-20x.5 button head caps as set screws. It isn't real pretty but it's hidden by the carpet. I couldn't use a commercially available version as I ended up too close to the 5" firewall recess