Today on our 2015 Silverado 3500 we'll be installing the Curt Custom Fifth Wheel Install Kit, part number C16413-204. To begin our install we're first going to go ahead and lower and remove the spare tire and both rear wheels. We'll then remove the inner thunder well. Not all applications will have one, but this one does. To remove the inner thunder wells there are a total of twelve fasteners that… see more >