What Are The Two Upper Holes In Short Hangers In Tandem-Axle Trailer Hanger Kit APT8 For?

Question

Question:

1. Ive noticed on some of the leaf spring hangers that some have two holes on the top and some do not. The ones with two holes on the top, are those hangers designed to be bolted to the frame? 2. Equalizer dimension. Are the dimensions for the equalizers measured from bolt hole centers of the two bottom holes or from the center of the bottom hole to the center of the middle/top hole? Thanks,

asked by: Allan A

0

Expert Reply:

I am happy to help!

Starting with the two holes in the shorter hangers included in the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center # APT8 you were looking at. Those holes are not for bolting but instead are for plug welding the hanger to the frame if you choose. You could also just have the hanger welded all the way around.

Moving on to the equalizers. The length of the equalizer are from center of one horizontal hole to the center of the other horizontal hole as shown in the included diagram. The # APT8 includes two equalizers that are 7-3/4" long measured this way.

I included a video of the # APT8 for you to take a look at.

expert reply by: Samuel C

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Length Measurement Of Equalizers
(click to enlarge)

Answer 1

First off by moving to heavier leaf springs you will cause the trailer to want to bounce more which could cause another set of issues. To ensure the length of the springs are correct I can use the information off the axle tag located on the center of…

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Answer 2

It depends on the leaf springs you are using. Basically you will need to mock it all up before permanently installing anything on the trailer. Generally speaking the distance between hangers would likely be 24-3/4 inches on center to 29-1/2 inches on…

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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

It is not uncommon for the trailer hangers on a tandem axle trailer to be all the same size or for there to be different sizes that can be 1-1/2 to 2 inches different in height when you compare the center hanger to the front and rear. For example,…

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Answer 5

The center hangers in the Tandem-Axle Trailer Hanger Kit #APT8 that you recently purchased are indeed longer. This is actually pretty common for tandem axle trailers. The reason for the extra length on the middle hanger is related to the shackle…

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Answer 6

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 7

Hey Micah! Pacbrake has actually been around for a long time, more than 60 years. We have had customers ask for these air bags in the past, and we've seen them on vehicles coming in. Until now, Firestone has been the go to since their quality is…

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Answer 8

Hello Jim, Great question! Because there is not a real standard to trailer suspension I do not have a direct answer for the spacing for the hangers to install the #e36FV. It all depends on what size shackle you are using, if the spring is over or…

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What Are The Two Upper Holes In Short Hangers In Tandem-Axle Trailer Hanger Kit APT8 For?

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