this is more of a indepentent rear suspension specific area which our cars have.
this is what the rear suspension on your s13 looks like:
Traction Arm:
The traction rods holds the rear wheels in position relative to the chassis during acceleration and deceleration.
Rear Upper Control Arms:
Allows for adjustment for rear camber.
Toe Arm:
allows adjustment of rear toe
Adjustable front tension rods allow adjustment of front caster and provides more steering response and feedback.