According to 3800 performance:
- Grand Prix Lowering Specs: lowers front approximately 1.3”, lowers rear approximately 1.0”
- Regal Lowering Specs: lowers front approximately 1.4”, lowers rear approximately 1.3”.
- Monte Carlo (2000-current) Lowering Specs: lowers front approximately 1.3”, lowers rear approximately 1.0”.
- Monte Carlo (1995-99) Lowering Specs: lowers front approximately 1.3”, lowers rear approximately 1.3”.
- Impala Lowering Specs: lowers front approximately 1.4”, lowers rear approximately 1.7”.
http://www.3800performance.com/Merch...t_Code=EIBACHS