Craig, this is how i removed my steering wheel on my '93 car , there are four bolts holding the airbag
on three of which can easily be removed by turning the wheel around to get access , the fourth is behind a hinged cover , pop this open with a small screwdriver and you will see the bolt head, it has a sliding shield covering it . To slide the shield across you must use a specialy shaped tool to disarm
the firing mechanism , I made my own from a 5mm socket driver , it has to be ground down as thin as possible as it goes into a hole where the disarming pin is . The disarming pin is a screw about an inch long with a half circle on the top , if you cut off the head of a brass woodscrew , grind the shaft of the screw till you have a half circle shape then cut a piece off and glue it into the 5mm socket you will have the tool required. Carefully unscrew the disarming pin [ anti clockwise ] until you have about three quarters of an inch out , you will find that about now you will be able to slide the cover across and get access to the last bolt . I am assured that once the disarming pin is unscrewed enough to slide the cover accross that the bag cannot fire ,but i wouldn't go chucking it about. I successfully fitted my new wooden wheel and replaced the airbag
, re-arming is just screwing the pin back to it's original position . I found that counting the number of turns of the disarming pin needed to release the cover helps to know how far to screw it back in , good luck Derek..