Broncomanjoe

So I found that my problem I'm having with my engine swap has something to do with the connection to my starter.. the battery is fully charged, I have my old starter and a brand new one and they both do the same thing. They pop out the drive gear but it won't spin.. The lights go out when I turn the key but I connected a ground wire directly from the neg. on the bat and one directly from pos on the starter solenoid to the starter and the same thing. I have the starter hanging so I can watch it do this even when I connect wires right from the battery to the starter the nothing happens... Does anyone know where the ground wires are suppose to be on these 5.4's??