Linkalign-360MPT-42 Datasheet (N500176) Revision CLinkalign-360MPT-40 ICD (ICDN900607) Revision ELinkalign-360MPT-4X Revision E Step FileHeavy Duty Quadpod Riser, 4.750 Interface, 16.50 in Tall (ACC-N901387-16.50) Revision A Step FileGHU Adapter Kit, Type 4.750-P Interface (ANTB-N901368-1) Revision A Step FileGPS Heading Unit (ACC-N900502-24-X) Revision B Step FileExtended Heavy Duty Quadpod, No Riser (ACC-N901492-NR) Revision C Step FileLA-360MPT-4X with Riser (ACC-N901387-16.50), GHU Adapter Bracket (ANTB-N901368-1), GHU (N900502-24-X) & Extended Heavy Duty Quadpod (ACC-N901492-NR) Step File