Rear camber shim installation on a 1999 Saab 9-5. The procedure is similar
  for 1994-1998 Saab 900 and 1999-2002 9-3.
  
  Many 9-5 owners face the problem of the rear camber getting out of spec.
  It's especially noticeable with lowered suspension, which increases the
  negative camber to -2° or more, with no factory provision to adjust
  it (the spec on the 9-5 is -1.1°±0.25° for the
  sport chassis).
  
  Luckily, Taliaferro Imports make
  camber adjustment shims that fit all 9-5, NG900 and OG9-3, allowing to
  change the rear camber by up to 1.2°. My 9-5 had too much camber on
  the left side, and I used these shims to even things out.
  Tools:
  
    - 17 mm socket: wheel bolts;
    
- 15 mm socket: hub nuts;
    
- socket extension with universal joint;
    
- torque wrench;
    
- car jack and axle stands.