The ICON carrier bearing drop kit for 1999 and newer Ford Super Duty trucks includes shims to fine-tune carrier bearing drop and minimize driveline vibration. The kit's range of 1/16, 1/8 and 1/4 inch shims lets installers adjust drop to the specific truck, helping reduce vibration without forcing a one-size-fits-all modification.
ICON 1999+ Ford F-250/F-350 Carrier Bearing Drop Kit