Sounds like a good article but IMHO not entirely true. I’ve pulled a tow dolly and boat trailer thru Colorado, Kentucky, Virginia, lots of BIG mountains and steep grades, never had a problem with overheating and I check my brakes.
You’ve read both sides of the opinions now. Bottom line, it’s your decision and your money, buy what you feel comfortable pulling. Best wishes in your decision, let us know how do.
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