First "long distance" boat tow

[Melnickta]

Took my 17' boat up from Hilton head to charleston this past weekend. Truck did great, but I was watching the heat hand the whole way. Two things kept running through my mind...1.) Is the transmission capable of overheating by towing in a lot of stop & go traffic and 2.) if I am going to do a lot of this, do I need heavy duty shocks as my back end was taking a beating going over all of the bridges?

Any insight by the much smarter members on this board would be appreciated. I am always impressed by the breadth of knowledge on here.
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