3 inches was where I went before switching to air suspension. That was a 2 inch Intrax drop spring that sagged down over 7 years or so. They actually rode pretty good, not too stiff or bouncy .. only problem was getting into steep driveways or over speed bumps had to take them at an angle. Other than that, never really had a problem, but I guess you learn the roads you drive when your car is that low.
- Dan