i drove my 91 5.0 lx the otherday it drove and shifted fine but the next morning it wouldnt get out of first so i parked it and came back the later afternoon and drove it about 2 miles while never getting it to shift. i finally got it to shift manually at about 4k but that is the only way to get it to shift. i go from park to reverse and it hits extremely hard likewise in drive, i