Front suspension, '04 Deville Service Manual, pg 3-18:
Camber = minus 0.2 degrees, plus or minus 0.5 degrees
Caster = 5.0 degrees, plus or minus 0.5 degrees
Total toe = + 0.2 degrees, plus or minus 0.2 degrees
Camber and caster adjustments (IF necessary!) require the use of a round file. To adjust caster angle, you file the three mounting holes in the strut tower to allow foreward and rearward strut adjustment.
To adjust camber (again, IF necessary), you slot the holes in the strut at the steering knuckle bolts.