[Wavery]

Another few notes:

Once you determine the correct rise or drop for your new ball mount, now you have to consider what will happen when you actually put your 300+ pounds of trailer tongue weight (plus weight of passengers and cargo in your truck) on your new trailer hitch ball. This will cause the ball height to drop even farther. How much farther depends on how YOUR truck reacts to that weight.

It didn't make a lot of difference on my truck but every vehicle is different. That being said, you may want to make about a 1" correction to your ball mount height.

When figuring the level of your TM, it's best to put your level on a flat area of your trailer tongue. Do NOT put your level on the roof. Your trailer tongue is an extension of the trailer frame and the trailer frame is what you want to be level.