How To Determine Where To Mount Single 3500lb Axle On 16' ATV Trailer

Question

Question:

building a 16foot ATV hauler, with 3500lb single axle. recommendation on axle placement

asked by: Darren L

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Expert Reply:

I would be happy to help you determine where to place the 3500lb axle on the 16' ATV trailer you are building, but it will really come down to the weight of your specific trailer.

You want the axle placed in a way that the tongue weight of the trailer ends up being 10-15% of the trailer weight. I would start with the axle placed so that 60% of the trailer is in front of the axle then taking the trailer to a local truck stop to weigh it.

If you find that your tongue weight with the axle in that location is less than 10% then you will want to move the axle back further, and if you find the tongue weight is above 15% you will want to move the axle closer to the front of the trailer.

Attached is a helpful article that does a great job of going over how to find the correct location for your axle to be placed.

expert reply by: Samuel C

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Answer 1

The closest option we have to the measurements you took on your existing leaf springs is the 3-Leaf Double-Eye Spring #e59SR. This 3-leaf stack measures 23-1/8 inches from the center of one eye to the center of the other and is designed for a 3,500…

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Answer 2

To correctly measure a leaf spring, you'll want to jack the trailer up on jack stands so the axle is hanging freely, then measure directly across from the center of one spring eye to the other, as shown in the provided diagram. The height of the…

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Answer 3

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have are…

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Answer 4

Based on what you are saying and your photos, it apprears you have springs that are double eye springs. The springs will need to be based on the load of your trailer. The axle capacity may be difficult to know as you said it appears to be custom. I…

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Answer 5

We do have an option for your 7k axles, but none with 7 leafs on them. At the end of the day the most important part is the appropriate capacity and length, since the leafs can be different thicknesses and grades of steel. With that said, if your…

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Answer 6

As long as you for sure will never exceed 4,000 lbs of total trailer weight you could drop down to a lower capacity leaf spring for a 2,000 lb axle. For that we have the part #072-017-00 which is 21 inches long or part #e84SR for 20-3/8 inches. Or…

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Answer 7

For your double eye springs that are 25-1/2 inches, it is likely your hangers are 29-1/2 inches apart on center and your springs most likely were originally 25-1/4 inches as they will stretch slightly over time. For instance if you were to use 25-1/4…

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Answer 8

You can use heavier-duty leaf springs like part #e44SR on your tandem axle boat trailer. The dimensions of the springs are the same so you will have no problem installing the new springs.The ride may be a bit stiffer with the new springs but they…

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Answer 9

We do have a couple of bolt-on spring hangers #CE14017G and #CE14016G but they are designed for slipper springs and not double-eye springs like #e77SR. Its not likely that professional welder would charge that much. You might be able to find one…

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Answer 10

When measuring your existing leaf springs, you will want to measure the length from the center of spring eye to the center of spring eye. If you measured a length of 26 inches, then the 4-Leaf Double-Eye Spring #e77SR should be a perfect replacement…

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Answer 11

Because a suspension is not static but is meant to articulate, going with longer shackle links won't provide the clearance you're looking for. The best course of action would be to raise the fenders to provide the proper clearance. At the…

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Answer 12

If your 1984 Prowler Trailer has 3,500 pound axles, I recommend sticking with a 3-Leaf spring like the 3-Leaf Double-Eye Spring #e59SR to replace your 23-1/4 inch springs. This leaf spring measures 23-1/8 inches from eye to eye, which will give you a…

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How To Determine Where To Mount Single 3500lb Axle On 16' ATV Trailer

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