Ok so I got a 93 F150 with a 302 and 5spd. Got a new battery and everything was fine up till yesterday. The gauge kept slowly creeping towards 8 until it finally died. ok duh replace alternator. did that and it still giving me a low voltage reading? Everything was tested and only thing that was wrong was the alternator had a 11.89 output......its a brand new alternator. What could be draining the battery and alternator? Checking all grounds and cables are next. Any other ideas?? thanks

-Dan