How To Determine Axle Placement On Single Axle Trailer Being Converted To Tandem Axle

Question

Question:

As far as locating the axles in conversion. Would the center mounting bracket for the dual be located where the center of the single axle was?

asked by: Jeffrey R

0

Expert Reply:

Not necessarily.

You will want to follow the included link to a helpful article that goes over proper placement of tandem axles. In short you will want the front axle in a location that makes the tongue weight 10-15% of the trailer weight. It may take a few tries to get the correct location.

Once the axle location is set then you can have a qualified welder fully weld the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front/Rear, 2-1/2" Center # APT3 you were looking at to the trailer.

Now this kit does not include leaf springs or spring mounting hardware, so if you can tell me the axle rating of your two axles I would be happy to recommend the correct components for you.

I included a video of the # APT3 for you to take a look at.

expert reply by: Samuel C

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Answer 1

You can convert a single axle trailer to a tandem axle but it's more extensive than just putting the extra axle on there. The current axle does need to be repositioned for proper tongue weight. You will also need to cut off the current hangers…

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Answer 2

It's definitely possible to upgrade a trailer's axle rating to a higher rating by just swapping the axles. To pick out the correct axle you'll need to measure the distance between the hub faces and the spring seat centers and you'll…

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Answer 3

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…

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Answer 4

We do not offer torsion axles due to shipping size and weight restrictions. We do offer leaf spring beam axles up to a 3500-lb rating and we offer Timbren axle-less suspensions as well. If you want to add a second axle to an existing single-axle…

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Answer 5

It is possible that the 10K axles that were retro-fitted to your trailer also had larger diameter wheels/tires installed on them to take advantage of the new axles' higher weight capacity. The bare minimum tire spacing on a tandem axle trailer is…

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Answer 6

The shorter shackle straps that measure 2-5/8 inches long like part #115052GALV are typically used on dual or triple axle systems. The tandem axle hanger kit part #APT3 which includes 7-3/4 inch equalizers uses 2-5/8 inch shackles.

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Answer 7

To convert your single axle trailer to a double axle, you will want to start with some basic measuring. Then you will want to determine if you will be we matching your current axle or replacing it. If you are matching your current axle, you will need…

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Answer 8

The Tandem-Axle Trailer Hanger Kit for Double-Eye Springs part #APT3 comes with the Curved Equalizer for 1-3/4" Wide Double-Eye Springs part #TREQE1 which measures 7-3/4" long from the center of the lower two holes and 3-3/16" from the…

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Answer 9

The longer hangers are the center hangers. The reason they are longer than the end hangers is because the shackle straps of the equalizer. It is somewhat hard to explain, but the longer center hanger is to compensate for how the shackle straps move…

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Answer 10

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 11

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 12

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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