Today we're going to be taking a look at part number 63835. This is the Tow Ready Hitch Ball with the 2 5/16th inch diameter. This is going to be known as a medium shank. It's going to have a gross towing weight of 12,000 pounds. You're going to have the 2 5/16th inch diameter ball, this is going to work with couplers that have a 2 5/6ths socket size. The shank diameter is this portion here, it's… see more >