How do you measure up?

[Hummertech]

TO CALIBRATE THE TRIM HEIGHT ON AN H2 WITH AIR SUSPENSION, THE TECH WILL HAVE TO DEFLATE THE
AIR SPRINGS, AND THEN BY USING JACKS OR A LIFT
RAISE THE REAR SUSPENSION TO A CERTAIN HEIGHT.
GM TELLS YOU TO MEASURE BETWEEN 2 POINTS BY THE BUMPER FOR THE REAR SUSPENSION, AND THEN USING OUR SCAN TOOLS, TO TELL THE COMPUTER TO LEARN THE TRIM HEIGHT AT THIS SETTING. THE COMPUTER BASICALLY LOOKS AT THE HEIGHT SENSOR READINGS AND SAYS, OK THIS IS WHERE I WANT TO BE. IF YOU WANT YOUR REAR TO SIT A LITTLE HIGHER, OR LOWER, YOU CAN RAISE OR LOWER YOUR READING A LITTLE WHEN YOU CALIBRATE THE TRIM HEIGHT. IF YOUR DEALERSHIP HAS A CLUE, THEY COULD EASILY DO THIS FOR YOU, AND CHARGE WARRANTY SOMETHING LIKE ADJUSTING THE TORSION BARS TO CORRECT RIDE HEIGHT. THAT WAY THEY WOULD GET PAID, AND MAKE YOU HAPPY AT THE SAME TIME.