Like we said....5.25"* in the front doors.
As to the old thread you posted in, please try not to do this in the future. A preferred way to refer to an old thread and still get your answer is to start a new thread of your own and include a link to the old thread your are asking about.
Two reasons for this:
1) It gets attention to YOUR particular question and/or problem.
2) It makes sure that you get the newest and most accurate information that we know at this time. Many times our collective knowledge moves along and there may be better and or newer information that others can also use.
Mike: 1997 SE w/ 183K, aka White Horse
, Gutted Airbox w/K&N, drilled 180* t-stat, tint all around, clear corners w/SilverStars, "PONTIAC" light up tail, PEMs, NGK TR55s