Table 6

Understeer Gradient Change Lightly Loaded to GVWR Condition
for 24 Various Model Year and Drivetrain 4-Door SUVs (non-Explorers)*


Data for 24 Various SUVs 95% Confidence Interval
Lower Upper
Average -0.347 -0.588 -0.107
Minimum -1.745    
Maximum 0.480    
Standard Deviation 0.569    

*  This analysis is based on 18 understeer gradient values supplied by Ford, seven of which have 4X2 drivetrains and 11 of which have 4X4 drivetrains, two understeer gradient values supplied by VRTC, one has a 4X2 drivetrain and one has a 4X4 drivetrain, and four understeer gradient values supplied by Dr. Guenther, all four of which have 4X2 drivetrains.