The fuel pump is gravity fed, so it should ideally mount under the bed and still be clear of the moving suspension pieces, the differential, and the spare tire. Install the filter on the inlet side of the pump with the -10 adapter, and fit a -8 to -6 reducer on the outbound side of the filter. Mount the pump with the supplied bolts and insulated brackets; use blue thread-locker on the mounting bolts. Install a -6 hose end on the pressure line coming from the engine compartment, and thread it onto the pump outlet. Be sure to support the fuel line, as needed, to keep it clear of the differential.