GM Service Manual Online
For 1990-2009 cars only

Suspension

Z Height

D Height

Trim Height must be verified and adjusted before aligning the vehicle.

With RPO ZM6

120 mm (4.7 in) ±6 mm (0.24 in )

132 mm (5.2 in) ±4 mm (0.16 in )

Without RPO ZM6

108 mm (4.3 in) ±6 mm (0.24 in )

149 mm (5.9 in) ±12 mm (0.47 in )