Abstract: A refuse collection vehicle has a chassis, an hydraulic fluid reservoir mounted on the chassis, and a body tiltably supported upon the chassis. The body has two opposed side walls along the interior of which rails extend. A bifurcated partition has an upper part suspended from the rails and a lower part tiltably suspended from the upper part. A tilt cylinder is mounted on the partition upper part and operatively linked with the partition lower part. Means are provided for moving the partition along the rails within said body. An extend trombone hydraulic line provides fluid communication between one end of the tilt cylinder and the chassis mounted hydraulic reservoir and a retract trombone hydraulic line provides fluid communication between an opposite end of the tilt cylinder and the hydraulic reservoir. So constructed, the relative sizes of the forward and rear portion of the vehicle body may be altered and refuse separately discharged therefrom on an automated basis.