AJ,
most rigid racing seats (ie Corbeau Forza etc) sit lower, have deeper seat bottoms, less thick padding.
most recliners (ie Corbeau Carrera etc) sit up higher than the rigid's, have shallower bottoms, and thicker padding. the universal side mount brackets
typically place the seat lower than if you use the slide tracks that fit the car (ie Corbeau, Sparco etc). <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/lookaround.gif" border="0" valign="absmiddle" alt=':look:'>
Corbeau's site has dimensions on all their seats
http://www.corbeau.com (see each ind seat listing)
Sparco too
http://www.sparcousa.com/sizechart_seat.htm
hope that helps <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt='
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