That era Dakota and Durango, tow rating will be in 1500-2500 range without factory tow package, and as listed in the model-engine-gear ratio table in the owner's manual with the package. Learned this when I bought a 2003 Durago to tow, but it didn't have the package, thus couldn't tow anything useful.
For Durango, tow package inckuded HD radiator, cooling for power steering, higher output alternator, and some alternative suspension parts. Under $200 as factory option, about $1600 worth of parts, before R&R labor, back in 2004. May be a bit different for V-6 Dakota, as a Durango used a mix of Dakota and Ram 1500 drivetrain and suspension parts, Dakota is all Dakota.
