Converting a Single Axle Trailer To a Tandem Axle Trailer With Timbren Axle-Less Trailer Suspension

Question

Question:

Could these be used to convert a single axle to tandem, by simply adding them to an existing spring set up?

asked by: Joe

0

Expert Reply:

I would not recommend adding the Timbren Heavy-Duty Axle-Less Trailer Suspension # TASR35HDS11 behind or in front of your existing axle to transform your single axle trailer into a tandem.

First the single axle that you currently have will likely have a different deflection distance than the Timbren which could lead to parts being damaged easier.

Second the weight would most likely not be balanced properly across the trailer and axles. As it sits your single axle is at the load point that allows for the proper amount of tongue weight to sit on your trailer. By adding a axle in front of or behind the current axle it will change the load distribution of your trailer.

You should really match your suspension so that you have the same deflection and space the axles evenly where the weight is properly distributed. I have linked one of our articles below that will help you with axle placement.

expert reply by: Bud M

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Answer 1

All of the parts you mentioned would work great with each other. You didn't mention the part numbers but I was able to determine what you were looking at based on title. The Timbren kit looks to be the part #TASR35HDS11 Hubs #AKHD-655-6-EZ-K…

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Answer 2

I would be happy to help you. The Dexter Trailer Hub and Drum Assembly item #42866UC3-EZ will not work with the Timbren Heavy-Duty Axle-Less Trailer Suspension item #TASR35HDS11 because the outer bearings are different sizes. You need the etrailer…

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Answer 3

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 4

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 5

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 6

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 7

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 8

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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Answer 9

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6-1/2 inch whereas the 225/75-15 fits widths that are 5 inch to 6 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 10

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this up for…

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Answer 11

Your math is correct in your trailer weight load example. If a fully-loaded tandem axle trailer weighs 4000-lbs then each of the 4 tires will bear 1/4th of that load, or 1000-lbs. In this case a tire rated for 1300-lbs would provide a good safety…

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Answer 12

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

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Converting a Single Axle Trailer To a Tandem Axle Trailer With Timbren Axle-Less Trailer Suspension

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