Dual pump integrated fracking system

An integrated fracking system comprising:

• a substructure assembly including one or more frame rails, the substructure assembly having a front end and a rear end;
• a pump subsystem including a first frac pump, a first motor operatively coupled to the first frac pump, a second frac pump, and a second motor operatively coupled to the second frac pump, the pump subsystem coupled to at least one frame rail;
• a variable frequency drive (VFD) coupled to at least one frame rail;
• and
• a transformer coupled to at least one frame rail;
• wherein the substructure assembly includes a cable tray coupled to at least one frame rail, the cable tray positioned between the frame rails and extending from the front end of the substructure to the rear end of the substructure.