Hanger Spacing for 3500 LB. Tandem Axle Trailer

Question

Question:

I just ordered the e64SR springs and the AP233 hanger kit. I know to place the mid hanger at 60 the load lenght. From the center of the mid hanger, how far out, front and back, should I place the hangers?

asked by: Agustin A

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Expert Reply:

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 29-1/2" between the center and rear hangers. This should achieve a 4-1/2" clearance between the center of the axle and the trailer frame if you have a 3500 lb axle. I've Provided a diagram that should be helpful. I've also provided a link to our trailer maintenance schedule that may come in handy.

expert reply by: Amy W

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Answer 1

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 2

The position of the axle should dictate the position of the springs and hangers not the other way around. With that being said, in order to determine proper placement of the hangers you will want to take the the distance between the two eye holes on…

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Answer 3

Spring Hanger location dimensions are normally figured by the manufacturer and provided with the spring hanger kit, that includes all of the parts for installing the springs on the trailer frame. I have provided a chart that shows the spring hanger…

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Answer 4

I checked the manual for the Demco DA91 actuator part #DM8509612 and if the lever is pulled it can be disengaged by using a screwdriver to lift upward on the front of the flat emergency lever spring while pulling lever forward till it releases.

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Answer 5

To bleed the brake lines with your Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout #DM8750311 you'll need to complete the following steps: 1. First raise the tongue of the trailer 4" to 6". 2. Loosen or remove two 5/16”…

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Answer 6

Hey Kevin thanks for your question. There is not much downside to going with the 5,000 lb springs instead of the 3,500 lb. A higher rated spring may make the ride a bit more "chunky" at times, since the spring would not flex as easily.…

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Answer 7

I understand how it would be unclear which measurement to use since the center of the axle is not the same as the center of the wheel on a torsion axle. For a single axle trailer, measure from the center of the spindle (center of wheel) to the…

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Answer 8

The spacing will depend on the axle diameter and on which particular spring hanger kit you use. If you have a 6000 lb 3 inch diameter axle, and you're using the #APT5 hanger kit which includes 7-3/4 inch equalizers and 2-5/8 inch shackle straps…

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Answer 9

To determine the location for the front and rear hangers on your tandem axle trailer you will first need to make sure that you have the correct center point for your equalizer hanger. The center point of your equalizer hanger needs to be located…

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Answer 10

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 11

We don't have a way to look up the length of your leaf springs as that's not something that a record was kept for. But I can say that nearly every 3,500 lb axle spring out there needs the 25-1/8 inch replacement like the part #e54SR so while…

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Answer 12

While the leaf spring part #e46SR only has one pin on it that is all that's needed to secure it to either the u-bolt plate or the axle spring seat. As long as one is there that's all that's needed.

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Hanger Spacing for 3500 LB. Tandem Axle Trailer

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