Parts list: № Number Qty Name Options Next page: ST442337 Rear Swing Arm (HD Tandem Walking Beam) (5-Section Main Frame) ( - 1999) ST442338 Rear Swing Arm (HD Tandem Walking Beam) (5-Section Main Frame) (2000 - ) ST442335 Rear Swing Arm (12',15' Main Frame 3 Section Machines and Wing Walking Beam ( - 1999) ST442341 Rear Swing Arm (Wing Frame) (Walking Beam, No Front Caster ) ( - 1999) ST442340 Rear Swing Arm (10' Main and Wing Frame Single) (2000 - )