How to Determine Front and Rear Hanger Location on my Tandem Axle Trailer

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Question:

On a tandem axle trailer, with 25 1/4” springs. What should be the measurement from the center hanger to the front and rear hanger

asked by: Tom

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Expert Reply:

To correctly position your hanger like the Front/Center/Rear Hanger for Double-Eye Springs part # 28-5 you will take the length of your springs that is 25 1/4" plus half the equalizer length. Take the spring plus 1/2 equalizer measurement and add 3/4" to 1". You will use this measurement for the distance between the center bolt hole of the center hanger to the center bolt hole of the front and rear hanger.

For instance the equalizer in the Suspension Kit for Tandem-Axle Trailers part # AP233 is 5 3/4" long would give us 25 1/4" plus 2 7/8" (half equalizer) then add the 3/4" to 1 " for a total of 25 1/4" + 2 7/8" + 1 for a distance center to center on the bolt holes of 29 1/8".

This will give you the angle you need but will not exceed the 45 degree point/

expert reply by: Randy B

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Answer 1

Since your equalizers are longer than what we have kits for you'll need to piece the kit together you'd need to replace the equalizers, bolts, shackles, and nuts. For the equalizer you'd need to start with the part #TREQE1,…

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Answer 2

Yes, the equalizers included in the Tandem-Axle Trailer Hanger Kit #AP233-H248 measure 2 inches tall (from eye hole to eye hole on center). I have attached a diagram to assist.

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Answer 3

The equalizers in trailer suspension hanger kit #AP233 are 5-3/4 inches long measured from the center of one spring eye to the center of the other spring eye. I have included a picture illustrating this for you.

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Answer 4

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 5

Since Grand Design is kind enough to list certain parts for their trailers I can confirm you have a 33" wheelbase on your 2020 Grand Design Transcend 27BHS. This means the MORryde Rubber Equalizers #MR87ZR will fit your trailer. Although I'm…

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Answer 6

When replacing shackle straps they should be the same length as the ones that were previously on your tandem axle trailer; replacing them with longer straps will result in additional play in your trailer suspension which could lead to additional wear…

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Answer 7

To slightly lower your trailer that has had an "axle flip" kit installed you would want to use slightly shorter shackle straps, not longer ones. Shorter shackles will let the axle rest closer to the trailer frame, which lowers the trailer…

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Answer 8

There is no specific torque rating for shackle bolts. Basically for the middle bolt there should be enough free play in the shackles to allow them to move. Tightening the shackle bolts too much will squeeze the shackle straps against the leaf springs…

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How to Determine Front and Rear Hanger Location on my Tandem Axle Trailer

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