I picked up an 88 GT w/ an AOD that was sitting for a few years and won't shift out of second. Replaced the oil pan gasket, grommet and filter. Checked all 15 valves in the valve body to ensure that they weren't being held up. A couple were a difficult to move, moved them in and out a few times and they freed up. Replaced pan and refilled with tranny fluid. Unfortunately that was no help. HELPPPPPPPPPPPPPP. Whats next?!?!