Weight Distribution Drop Shank Recommendation for Trailer being Towed by Taller Truck


Hi i just bought a New Ram 2500 and the truck is higher in the back end than the old truck and need to replace the shank with a longer to tow the trailer. What shank should i get? How do i calculate the new length


Expert Reply:

You definitely need a shank with more drop than what you currently have. Most likely the part # FA92-02-4315 would give you the amount drop you'd need as it has ability to provide up to 7 inches of drop but you'd want to first determine the amount of drop you'd need.

I attached an FAQ that details how to pick out the correct drop. Picking out the correct ball mount will allow your trailer to sit as level as possible. Basically you will first measure the height from the ground to the top of the receiver opening on the hitch while on level ground. Next, you will measure the coupler height from the ground to the bottom of the trailer coupler when the trailer is on level ground.

Next, you will need to compute the difference. If the hitch height is greater than the coupler height the difference is the drop required. If the coupler height is greater the difference is the rise required. You will want to pick the ball mount with the rise/drop closest to the difference.

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expert reply by:
Jameson C

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