1999 Western Star 4964 tractor rigged with single axle jeep and 1994 Brodex Tri-Axle logging trailer.  Cat 3406E (rebuilt approximately 5,000 hours ago).  18 speed transmission, Meritor RT46160P rear axles with dual locks at 4.56 ratio, Chalmers suspension (recently rebuilt), 236" wheelbase. 
 
Truck and trailer both have extensive repair history.  Inquire for more details.