ATC4454 Rockwell Meritor Axle Seal Driver Kit. This Axle Seal Driver Kit is a direct replacement for OEM parts KIT4454, 2KIT 4454, TDAKIT4454, R4422401 and R4422402.Our seal installation drivers are required for the replacement of multiple seals for Meritor axles. Use the R4422401 alternate to install 3.00 NOM. DIA. seal. Use part number R4422402 alernate for 3.25 NOM. DIA. seal. In order to not damage parts this seal installer set must be used with a dead blow hammer only.