Because it's difficult to describe precisely without seeing your specific truck, I strongly recommend consulting a repair manual specific to your 1999 Dodge Ram 1500 Sport. A Haynes or Chilton manual will have diagrams and clear instructions showing the location. You can also find diagrams online through auto parts websites by searching for your specific vehicle information (Year, Make, Model, and Engine).
Be cautious when working near the transmission; it involves working under the vehicle and you might encounter hot surfaces. If you're not comfortable working on your vehicle, take it to a qualified mechanic.
