Where is the crank sensor located on a 1993 Buick Skylark?

I bought a new crank sensor for my car and somebody is gonna install out for me but we can't seen to find where to replace it.Where is the crank sensor located on a 1993 Buick Skylark?If its the 3.1 or 3100 engine,look between the engine and trans. above the oil pan. Somewhat hard to describe. If you laid on your back looking up at the oil pan,move toward the back of the engine just above where the block and oil pan meet.