This has been addressed many times here,and I have to say again that a 4400lb car with this stock drivetrain is not capable of safely or mechanically for any duration pulling a 5000lb wagon! IMO these are NOT tow vehicles. Safety is another issue: wind & visibility;I see many Blazers towing wagons that are so much wider than the unit itself with none other than stock mirrors!Add Kansas wind and one is in trouble,let alone high altitude operation...