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How to Choose the Correct Weight Distribution Shank Rise or Drop

Question:

I have a 2002 excursion 4x4 with a 6 inch lift on 37s. The receiver opening at the bottom measure 24.5 in from the ground and the top show about 26.5in from the ground. What length do I need? I have a Reese Weight distribution ClassV with trunion bars. Please advise.

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Expert Reply:

To determine what kind of rise or drop you need in your Weight Distribution (WD) shank you first need to measure from the ground to the top of the inside of the hitch receiver on your 2002 Ford Excursion, and then from the ground to the bottom of your trailer coupler. Please be sure that both vehicles are on level ground and your trailer is sitting level.

If the hitch receiver height is the larger number then you need a drop, but if your trailer coupler is higher you need a rise. To figure out how much of a drop or rise you simply need to subtract the smaller number from the larger one. The result is the amount of drop/rise that is needed.

I have attached a link to our selection of WD shanks for you to filter through as well as a helpful article on choosing the correct ball mount which applies to your application. This includes the Reese WD Shank # RP3344 that you referenced which has a max drop of 7-5/8" from the top of the receiver opening and a max drop of 6-3/8" from the bottom of the receiver opening.

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Jon G


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