Determining Hanger Spacing for Single Axle Trailer With 3,500 Pound Leaf Spring

Question

Question:

spring hanger placement, single 3500 lb double eye, is there a rule of thumb for distance between hangers

asked by: Darren L

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Expert Reply:

As a general rule of thumb on a single axle trailer the hanger spacing should be around 3/8" shorter than the spring eye to spring eye measurement of your leaf spring. So for a 23-1/8" long leaf spring like the # e59SR you would want your hanger spacing to be 22-3/4".

expert reply by: Robin H

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Answer 1

When using the 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles part #e27SR with the Single-Axle Trailer Hanger Kit for Double-Eye Springs part #APS4 you will need to space the leaf spring hangers 25-3/4" apart.

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Answer 2

Our general rule of thumb is that the hanger spacing should be 1/4" -1/2" less than the length of the leaf spring. There is a small amount of tolerance,(1/2" or less) but not much. I do not recommend using a…

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Answer 3

I definitely recommend replacing your 3,500 lb 26 inch leaf springs with the 26 inch 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles #e22YR. The 4,500 lb would be too stiff and your ride would suffer so the better option by far are the 4k…

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Answer 4

Sorry for the confusion but with the mounting brackets for your single axle trailer being separated 25-3/4" on center you will need to use a 26" leaf spring. We offer this length leaf spring in a couple different weight capacities.…

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Answer 5

Yes, you can install use the leaf spring part #e22YR on a square axle trailer like you have.

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Answer 6

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…

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Answer 7

Yes, you can replace your slipper springs with double eye springs. The Double-Eye Spring #e27SR measure 26 inches from center of spring eye to center of spring eye and would work for you; these have a 2,250 lb capacity each though you will need to…

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Answer 8

You will want to remove your spring hangers and then weld them in a position that allows the shackles to hang properly. On a spring that is 26 inches eye to eye on center and a single axle trailer you will want the hangers to be up to 1/2 inch less…

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Answer 9

Good question, and what happens is that leaf springs elongate over time, and since you mentioned you got measurements of 25-1/2 inches from center eye to center eye and 26 inches under partial load, the best option for leaf springs really is the…

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Answer 10

The recommended distance between the hangers of the #APS1 would be 24-7/8 inches when using the leaf spring #e54SR. When the trailer is set on the ground and the leaf spring is supporting the weight of the trailer the spring will flatten out and…

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Answer 11

For a single axle trailer, you want the shackle strap to be able to move so that you have the spring deflection needed for your suspension. Angled like the photo or even almost vertical is fine you just don't want the shackle strap to bind…

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Answer 12

Thank you for purchasing from etrailer! You did a great job selecting compatible parts. When using Leaf Springs #e64SR with the #AP233 Equalizer Kit and the #H248 Hanger Kit, there should be 29-1/2" between the front and center hangers and…

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