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1) What is required to determine the correct drop or rise of the ball mount?

• Distance from the ground to the bottom of the trailer coupler A
• Distance from the ground to the top I.D. of the receiver tube opening B
• The difference between the two measurements will determine the size of drop or rise needed

2) How to determine or measure the length of the ball mount?

• This is the distance from the center of the ball hole to the center of the pin hole
• This length determines how much clearance is available between the vehicle and the trailer

3) How to determine or measure the drop required?

• A “drop” is required when the hitch height is greater than the trailer height
• A “drop” is the distance from the top of the shank to the top of the ball platform