charging problem on 1990 Dodge Ramcharger

i've replaced the alternator and battery, can't hold a charge. trying to figure out if its a fuseable link, what do you think?

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2 answers 4 comments
What is the alternator output? Need to know the voltage and the max amperage output. Will also need to know the results of a load test on the charging system.
do i need to hook some kind of meter to the alternator to get the output and max ampage, and voltage info?
load test? is that the test that autozone does with their machine?
what did you figure out? I am stumped with mine cant figure out why I am not getting a charge when my battery and alternator test just fine. I am really tired of trying to figure this out.
I am Getting 120 amps of voltage from alternator. But I am also getting Ignition feed through bolth field untill i disconnecet the altnator. then the computor sends a ground. I can ground the altanator manuley to charge but the truck wont do it itself
its the computer-computer controls the ground-bad design by dodge.