On the off chance that a Ram 4.7L and a Dakota 5.9L use the same muffler:
Go to
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and search for part number FLO-52558
--------- "Flowmaster 50 Series SUV Performance Mufflers Muffler, SUV 50 Series,
2 1/ 2 in. Inlet/ 2 1/ 2 in. Outlet, Steel, Aluminized"
"Brand: Flowmaster Product Line: Flowmaster 50 Series SUV Performance Mufflers Case Shape: Oval Inlet Diameter (in): 2.50 Inlet Quantity: Single Inlet Location: Offset Outlet Diameter (in): 2.50 Outlet Quantity: Single Outlet Location: Offset Internal Construction: Chambered Muffler Material: Steel Muffler Finish: Aluminized Case Length (in): 17.00 Overall Length (in): 23.00 Thickness (in): 5.00 Width (in): 10.00 Outlet Style: Standard, without tip Quantity: Sold individually."
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It needed an extension pipe because it is shorter than the stock muffer. It sounds really good but not loud enough to make non-car people frown and gas mileage went up measureably.
-rev