Recommended Hanger Spacing for Triple Axle Trailer

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Question:

Im building a tri axle boat trailer and wonder if you could advise the centr distances from hanger to pivot points . the pivots are the cast triangular type and the spring are 20 inches from eye Regards

asked by: Gary T

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Expert Reply:

There will be different dimensions between the hangers. From front to back your hangers for that 20-3/8 inch spring like # e84SR will be 24-3/4 on center then 29 inches on center and finally 24-3/4 inches on center. This will put each of the 3 axles 28-1/2 inches on center. I've attached a photo to assist.

This is all based on 7-3/4 inch curved equalizers and 2-5/8 inch long shackle straps. These are found in the Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 3-1/4" Front/Rear/Center # APTT5.

expert reply by: Jason S

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Answer 1

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 2

Thanks for reaching out, Eric! According to my research it looks like you're needing to space the outer hangers 29-1/2" apart and the inner hangers 33" apart since you have 26" long leaf springs. If you check out the linked photo…

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Answer 3

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 4

In order to measure a double eye leaf spring you'll need to do so while unloaded and from the center of one eye to the center of the other. I have attached a photo below to assist. Please note, old worn out springs will measure out a bit longer…

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Answer 5

I have an axle that is pretty close to what you're wanting, but is not going to work as the spring center measurement is a bit off and it needs to be just right to work. I do have a solution though. You can get the Timbren Axle-less Trailer…

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Answer 6

Hello Mekiah. So, we actually do not carry an axle that will meet your exact specifications. We do have a 6,000 lb axle that has a 86-1/2" hub face, part #e33GR. The spring seats on this axle are at 711-1/2" though, so they would have to be…

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Answer 7

The Torklift Superhitch part #TL74FR that fits your 2022 Chevy Silverado 3500 with the factory hitch does require removing the factory hitch to install. The factory bumper does get reinstalled but it does initially come off to install this hitch.…

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Answer 8

The differences are the dimensions of the hangers and equalizers of the three kits. The #APTT1 uses totally straight equalizers and taller center hangers. The #APTT3 uses more traditional sized equalizers and center and outside hangers that differ in…

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Answer 9

The spring hanger mounting dimensions for the Triple-Axle Trailer Hanger Kit, item #APTT3, are as follows. From the center of the hole in the front hanger, to the center of the hole in the center front hanger, the distance should be 29-1/2 inches.…

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Answer 10

Front and rear suspension hangers are not often the same height like this but they can be. If you have the hanger spacing right then what will happen is the center of the spring will be offset a little between the two hangers to compensate some for…

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Answer 11

When replacing equalizer bolts and shackle bolts you will not use a specific torque rating for tightening the bolts. The first thing you should make sure of is that the bolts you use are long enough so that when installed you will have at least 2…

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Answer 12

Equalizer bolts, like the TruRyde Wet Equalizer Bolt, #TRFA71063, should be torqued to yield. Equalizer bolts are not given a specific torque rating because they should allow some movement of the equalizer. If they are torqued down too tight, the…

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Recommended Hanger Spacing for Triple Axle Trailer

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