Porsche 2012 911 GT3 CUP Technical Manual page 94

6.4.1.3. Camber
The front wishbone can be adjusted as follows:
Wishbone outer
 Camber shims: The wishbone length can be adjusted using
different spacers, a 1 mm adjustment in length equates to a
camber change of approximately 6'
 Porsche Motorsport provides the following special tool to remove
the trunnion pin:
Centring bolt:
Plunger rod
Plunger
 The semi-trailing arms in the front control arms must be left in the
position in which they are delivered (front position/shortest
wheelbase) (mid-position is not permitted)
Camber shims
996.721.920.90
996.721.923.90
996.721.921.90
Fixed bearing
91