A manual/automatic side loading and rear discharge refuse collection truck body as disclosed which incorporates full ejection without truck body tipping. A unique packing system as provided which includes a low profile packer panel which operates in a low profile charging material receiving hopper which also features lowered or dropped floor to facilitate optional manual loading. The charging hopper features a low profile which creates a dropped area beneath the forward portion of the storage enclosure so that material deposited in the charging hopper can be fed by the packing system into the storage enclosure through a bottom forward charging opening. A packer-ejector assist panel is provided to assist in clearing material from the dropped area portion of the charging hopper.