FIRST POST TO THIS GROUP HAVE 02 AWD SIERRA DENALI AND VEHICLE DROPSIN THE FRONT TO FAR NEED TO DROP ASS END DOWN TO CURTAIL BRAKE WEIGHT SHIFT HOPE THIS IS NOT TO TECHNICAL FOR YOU GUYS BRAKE PRESSURES ARE AS FOLLOW S FRONT MEASURE AT 1700PSI REARS ARE AT 980 PSI WHICH BOTH READINGS TAKEN WITH VEHICLE AT REST POSTION TRK TAKES NOSE DIVE. ABSOLUTELY KNOW THAT IF REAR IS DROPPED DOWN THE WEIGHT BIAS WILL NOT BE SO DRASTIC GM SAYS ITS NORMAL CONDITION. BUT WHAT THEY DONT WANT YOU TO DO IS MAKE THISTRK HANDLE REALLY GOOD 4WHEEL STEER SYS IS ONE OF THE BEST OFFERINGS GM HAS PUT OUT ON THESE TRKS SO ITS GOING TO HANDLE AND STOP RIGHT!!!!!! THANKS