Before switching to a Pathfinder I used my Chevy P/U. However, when I first started towing the TM I didn't have a camper shell. The gas mileage was stinky. What a difference the camper shell made. I have a plastic liner, as well as a lined shell, looks great and worked well with the TM for storage.
Too bad I can't keep all my toys. The truck sold this morning :
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Chris B