A refuse body adapter includes a sub-frame assembly, a sub-frame adapter, and a spacer. The sub-frame assembly is configured to be coupled to a cargo body. The sub-frame adapter is configured to be coupled to a chassis of a vehicle. The spacer is coupled to both the sub-frame assembly and the sub-frame adapter. The spacer is disposed in a gap formed between the sub-frame assembly and the sub-frame adapter. A thickness of the spacer may be adjusted to accommodate different gap sizes between the sub-frame assembly and the sub-frame adapter.