2014 Western Star 4900 Tri-Drive rigged with 2003 Peerless Tri-Axle trailer.  Rigging is currently set up for long logs, but is convertible to short logs.  ISX15 600 hp, 18 speed transmission, Meritor RZ-XX166P @ 4.56 ratio, triple locks.  
 
Approximately 717,000 km, 18,800 hours.    Engine was rebuilt at  380,000 km.  All 3 diffs replaced in last two years, recent clutch.