1990 Suburban wont start!!

[SoCalSlaughter]

So my 1990 Suburban V2500 4X4 quit running. I had put the truck in reverse and it just shut off. I had to push it into my parking spot. Popped the hood trying to figure out what happen. Only thing I can find is that the fuel pump is not priming or turning on or sending any fuel. ECMB fuse blew the day before, replaced fuse and truck started. Ive changed out relay, and I can feel it click when the key is turned to on, removed fuel filter and turned key to on and no fuel pressure. Cannot figure out why it wont start. been out looking and checking things for 3 hours now. Im at a loss. Any ideas? Also, put a known good fuel pump in and still no start.