I haven't installed strut bars on my 94, but just got done doing shocks and springs and to get to the two 14mm nuts that hold both strut assemblies on in the rear you fold the seat back down, and remove the two black plastic panels just behind them. the panels were held in with a few little plastic "push in" type clips and just pop out. Once you do actually get in there a extension, and swivel deep socket on a air ratchet makes the job much easier, the nuts are kind of hard to get at...
good luck