Hanger Spacing for Tandem Trailer with 25-1/4 inch Leaf Springs and 7-3/4 inch Equalizers

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Question:

Hi, I have a 2005 Tahoe Transport 33foot 5th wheel tandem axle. My stock hangers broke and I am replacing them. They were bent or broken so it was hard to determine the stock spacing, looked like 31inch but that doesnt seem correct from what I have seen online. I bought new hangers, 7-3/4inch equalizers and the Neverfail suspension upgrade kit from you. I have 1-3/4inch wide 5 leaf double eye springs that are 25-1/4inch eye to eye. I think my axles are 6000 lb. So what should the hangers spacing be eye to eye? Thank you,

asked by: Guy S

1

Helpful Expert Reply:

For a tandem axle trailer using 25-1/4-inch double-eye springs like # e57SR and a 7-3/4-inch equalizer like # TREQE1 the hanger spacing should be approximately 29-1/2-inches. This is a starting point and you may need to adjust this dimension slightly.

expert reply by: Jameson C

1

Answer 1

When installing trailer suspension I recommend that you completely mock the setup to determine the best placement for the hangers. To do this I would put all of the suspension together and clamp it in place with the rear shackles at a very slight…

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Answer 2

To start with, the 6,000 pound springs I suggest are #e34SR. They're 25-1/4 inch long, 5 leaf springs. I recommend either hanger kit #APT3 or #APT5 with the springs. The difference between the two hanger kits is the height of the hangers. With…

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Answer 3

The Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers #K71-359-00 is ideal for 33" axle spacing but since the shackle straps are able to rotate they can be used for varying axle spacings that are near that 33" mark. The best thing…

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Answer 4

The suspension kit that would be the closest to what you have on your trailer would definitely be the Tandem-Axle Trailer Hanger Kit #APT9. The minor dimensional differences would not cause an issue. Since the equalizers would be 3/4 of an inch…

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Answer 5

The distance on center between the spring hanger bolt holes for dual axle setups, with the #APT9 Tandem-Axle Trailer Hanger Kit, should be 29-1/2 inches for double eye springs that measure 25-1/4 inches on center between the spring eyes and for axles…

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Answer 6

When setting up a new trailer suspension it is best to do a mock-up (by clamping or tack welding the parts in place) to allow you to see how the system functions. There are so many variables that is best to test. Typical spacing dimensions for…

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Answer 7

For a tandem axle trailer using 25-1/4-inch double-eye springs like #e57SR and a 7-3/4-inch equalizer like #TREQE1 the hanger spacing should be approximately 29-1/2-inches. This is a starting point and you may need to adjust this dimension slightly.

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Answer 8

Front and rear springs hangers should be equally spaced around the center hanger and spring equalizer. It may be that your trailer was modified (if not originally built) with a different height center hanger and that might be how the spacing became…

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Answer 9

The hanger kit I recommend is part #APT3HD which includes front, center and rear hangers, equalizers and bolts. This kit is good for axles up to a 7K rating and most 3-inch diameter axles are rated for 6000 to 7200-lbs. The linked video will let you…

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Answer 10

Assuming you're using a 7-3/4" equalizer like what's included in the Hanger Kit #APT5, your hangers should be roughly 29-1/2" between the front and center hangers, and also 29-1/2" between the center and rear hangers. With a…

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Answer 11

With the 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 25-1/8" Long #e54SR on a tandem axle trailer, the distance between the front and center hangers and the center and rear hangers should be 29-1/2". I have added a link to our…

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Answer 12

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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Hanger Spacing for Tandem Trailer with 25-1/4 inch Leaf Springs and 7-3/4 inch Equalizers

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