Just to add to Terry's info, most of the internals will be the same as a passenger car engine as far as bearings, rings, etc. go.
The only difference you may run into on a medium-duty truck is the heads, water pump housing, exhaust manifolds and intake maybe different than a passenger car or light-duty truck.
So, obviously gaskets and parts related to those items will be truck specific.
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Dodge Sweptline Truck General Discussion