Hey all new here and been searching everywhere for help

I got an 94 truck, was running good, now every time I park it's dead. Jump start it and it goes every time. For some reason the alternator isn't being charged up while driving. I've got a new battery already before this happened, I pulled the current alternator and had autozone test it, it passed. I swaped the alt 80 fuse in the box and tested the main fuses. Also had to re ground a wire on the side wall because it broke one day. Any help would be greatly appreciated, I'm at a lost.
Only other part i havent check is the fuel pump
At work this morning, turned on the lights after driving 10 mins and sitting for a bit as well, truck stalls a little but won't die now.