5.8L, C-6 TRANSMISSION, TRANS FLUID OVERFILL. TRANS MAY NOT ENGAGE OR MAY SLIP IF FLUID LEVEL IS ADJUSTED. THIS IS FROM INCORRECT FLUID FILLER TUBE ASSY (7A228). BEFORE ADJUSTING FLUID LEVEL, CHECK FOR CORRECT FLUID FILLER TUBE ASSY (7A228). REMOVE FLUID LEVEL INDICATOR (7A020) & TUBE. INSERT INDICATOR IN TUBE. MEASURE FROM BOTTOM OF FILLER TUBE TO BOTTOM OF INDICATOR. IF IT EXCEEDS 80 MM (3 1/8 IN) REPLACE FILLER TUBE WITH F6TZ-7A228-G.