In this case the thickness of the original will indicate whether you have Tow package
pop the hood, measure the middle, aluminum are only
if 1 inch = 1 row
if 2 inch = 2 row
if you can fit 2 fingers in the top channel, it's a 2 row (Tow package)
If you have the 1 inch, you cannot upgrade to the 2 row. It is important to measure in this case.
LInk below to the listings.
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