Can Weight Distribution Systems be Used on Trailers with Surge Couplers  

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Expert Reply:

Weight distribution does not transfer weight to the trailer tongue though it does put more stress on the frame. What it does do is distribute the weight more evenly to all axles of the tow vehicle and trailer. Think about it as 2 blocks, one is the tow vehicle, the other is the trailer. And in between them is a spring that is pushing towards and up on both ends towards the blocks. The tongue weight is this scenario would be hanging for the spring. So the tongue weight does not necessarily change much.

Now that we have that sorted out we can move on to systems that are compatible with surge brakes. But first, if your trailer has a straight tongue instead of an A-Frame then that is going to require some specific equipment. Also if the trailer frame is aluminum you will need to inquire with the trailer manufacturer if weight distribution is going to be used.

On a steel A-frame trailer, when choosing a weight distribution system you will need to go by the total tongue weight of the set up. This is calculated by taking the tongue weight of the trailer when loaded and ready to tow and adding to that the weight of anything loaded behind the rear axle of the tow vehicle.

If your total tongue weight is less than 600 pounds you can use Curt system # 17300 that you have referenced.

Given the rating of your trailer hitch you would not be able to go beyond 600 pounds tongue weight. For either of the above systems you will need to add a properly sized ball. Use # A-90 for a 2 inch or # 19286 for a 2-5/16 inch.

I have included some links to our articles on weight distribution and determining tongue weight for you to view.

expert reply by: Michael H

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