Jeep 2005 Grand Cherokee - Manual (Page 288)

TRAILER CLASSIFICATIONS
Class Max. GTW (Gross Trailer Wt.) Frontal Area Length
Class I - Light Duty 2,000 lbs. (907 kg) 32 ft2 20 ft
Class II - Medium Duty 3,500 lbs. (1 587 kg) 40 ft2 20 ft
Class III - Heavy Duty 5,000 lbs. (2 268 kg) 60 ft2 25 ft
Class IV - Extra Heavy Duty (See Note 1) 60 ft2 30 ft
Note 1 – Refer to the Trailer Towing Capability chart for
the Max. GTW towable for a given drivetrain.
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