Got a new 17 Silverado Z71. I will use it to pull my 2003 18 1/2 foot Basstracker that sits on a typical Trailstar trailer. I have always pulled it with Jeep Grand Cherokees in the past. Decided I should measure, or try to, and get as close to level as I could. Have always used a 2 inch drop before but maybe I should have been using a little more. In measuring from top of receiver and bottom of the tongue on the trailer and figuring the weight of the trailer on the vehicle, I am coming up with approx. 19.75 for the receiver and 16.5 on the trailer. Difference should be the correct drop or 3.25 inches. Just wondering if this sounds correct to you all and wondered if anyone else out there might have the same setup to verify. Thanks for the help. (I know, I worry to much!)