From my 1993 Explorer Owners Guide:
4 Door, 2WD, Manual Trans.
3.27 Axle
GCWR - 6,000 lb.
Trailer Weight Range - 0-1,900 lb.
3.73 Axle
GCWR - 7,000 lb.
Trailer Weight Range - 0-2,900 lb.
4 Door, 4WD, Manual Trans.
3.27 Axle
GCWR - 6,000 lb.
Trailer Weight Range - 0-1,700 lb.
3.73 Axle
GCWR - 7,000 lb.
Trailer Weight Range - 0-2,700 lb.
4 Door, 2WD, Automatic Trans.
3.07 Axle
GCWR - 6,000 lb.
Trailer Weight Range - 0-1,900 lb.
3.27 Axle
GCWR - 7,500 lb.
Trailer Weight Range - 0-3,400 lb.
3.73 Axle
GCWR - 9,500 lb.
Trailer Weight Range - 0-5,400 lb.
4 Door, 4WD, Automatic Trans.
3.27 Axle
GCWR - 7,500 lb.
Trailer Weight Range - 0-3,200 lb.
3.73 Axle
GCWR - 9,500 lb.
Trailer Weight Range - 0-5,200 lb.
Maximum Frontal Area of Trailer is 50 sq.ft. for all ratings.
*GCWR (Gross Combined Weight Rating)