A dump truck system comprising a vehicle and a trailer assembly. The vehicle comprises a vehicle bed having a gate assembly movable between open and closed positions. The trailer assembly comprises a trailer frame assembly and a trailer bed. The trailer frame assembly is operable in a selected one of a rail configuration and a notch configuration. The trailer bed is adapted to be supported by the trailer frame assembly. The trailer assembly is operable in a tow configuration and a transfer configuration. In the tow configuration, the trailer assembly does not engage the vehicle. In the transfer configuration, the trailer assembly engages the vehicle to allow the trailer bed to move from the trailer assembly to the vehicle bed. When the trailer frame is in the notch configuration, the trailer assembly may be moved from the tow configuration into the transfer configuration with the gate assembly in the closed position.
RELATED APPLICATIONS
This application is a continuation of U.S. patent application Ser. No. 09/946,608 filed Sep. 4, 2001, now U.S. Pat. No. 6,733,085 issued May 11, 2004, which is a continuation-in-part of U.S. patent application Ser. No. 09/482,973 filed on Jan. 12, 2000, now U.S. Pat. No. 6,283,554 B1 issued Sep. 4, 2001, which claims priority of U.S. Provisional Patent Application Ser. No. 60/115,697 filed on Jan. 12, 1999.
