Over the Mtn and onto the Beach

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Hi, I am traveling from Woodland PA to Cape May, NJ next Monday. The route is PA322/22 going through State College PA and Harrisburg. My question is...does anyone know if that route is ok for pulling a very loaded chevy Suburban (but well within weight issues) and a 19' Bambi? An alternetive the Rt 76 but it is very narrow with cement barriers on each side most of the way. Thank you in advance. I would be happy to look it up somewhere, I could not seem to find a site that gave that type of information. I could get route, a photograph, but not a "how's the road for towing".