Basically it is in my first post - to locate the trunnion lockbolt, put the car on ramps or somehow safely get under the car, then get someone to sit in the car and move the gear selector backwards and forwards (engine OFF!) while you observe from underneath how the selector mechanism works. One particular piece of the mechanism will have a nut clamped to a slot....this is called the trunnion lockbolt and it is this which you loosen to perform the adjustment procedure. You loosen this trunnion lockbolt, place the gear selector in the PARK position, then under the car you move lever which comes out of the transmission fully rearwards (which is the PARK position). Then tighten the lockbolt. When you are finished, the gear selector will be in PARK and the lever on the transmission will also be in PARK. If you need any more help in the description of this job just yell out - maybe someone else can make my explanation more understandable. If you're really stretched I could email you a line drawing of the parts mentioned, or maybe check at your library for a workshop manual. Good Luck.