This is the Stock Differential that was replaced with a Quaife Limited Slip Differential.
I had to adgust my clutch peddal after getting the ACT +30% heavy duty clutch and pressure plate.
I can really feel the cluch grabbing now, and it's still drivable on the street. This combo works great on the drag strip.
This picture points at two things. The 12mm nut is all you need to mess with. The other part shoudn't be touched.
Basically you lossen the nut, then turn the shaft the nut is on to move the engagment point of the clutch petal.
I found that it make it easier to turn the shaft if you push on the clutch petal a little while turning it.