I've replaced the fuel pump, it has a good inertia switch, and swapped the fuel pump relay for the horn relay and still nothing. I've done an inspection by the ABS unit and it's bracket along with by the battery, both look good. I've chased the wiring loom back from the fuel pump till the point it enters the cab and that loom looks good. I've tried putting a 40 amp fuse in and it still blows it.

Is there any other areas where it might short so that i can go inspect those areas for a short? So i can get the rig back on the road.

 

the grounding was happening Via the Pink and black wire on top of the wiring harness connection, in the frame rail under the cab about in line with the rear of the driver's seat. I fixed it with liquid electrical tape, electrical tape and a piece of roof membrane to help insulate the connection and it's wires from cab.