If you haven't done the front yet, your car rear is angled higher than the front, which will make the rear of the car measure more lift. Adding the front lift will level the car out and make it measure right.

2001 Sportage, 4" RSG lift, Cragers W/31 10.5 Micky Claws, Warn Manual Hubs, 16 gallon Pro Street Fuel Cell, Custom Snorkel, K&N Filter.
1989 Dodge W250.