When I bought my 2021 Z185, the book said for the tow height to be 20"-22" from top of swing tongue to ground. Which i had it at 20". I have been watching Ytube and all say's to have a level trailing for towing, I'm at 16" to top of tongue to be level. I'm towing with an 2015 Silverado 1500. When I hook up my boat it drops the back of truck 2". What is the correct setup for towing a single axle trailer?
Thanks
Rick