What Timbren Axle Setup do You Recommend for a Custom Trailer with 5500 GVWR?

Question

Question:

Plan to build a customer trailer with the following desired specs -16x7 approx dimensions -target around 5500 GVW trailer dry weight under 4000lb -Light off-road duty likely use old Jeep tires/rims P245/75r/17 Any recommendations on Timbren models, single vs tandem and hub/brake configuration is appreciated.

asked by: AJ

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Expert Reply:

Since you are planning on a custom fabrication for a customer that has a 5500 GVW, a great option is the Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - 7K # TASR7KS01 or the same model with a 4-inch drop # TASR7KS02. A tandem axle system will ultimately give you more support, but a single-axle system will work just fine as it is (especially with a 7k weight capacity).

Since the Timbrens come with EZ lube spindles, I recommend the Dexter Trailer Hub and Drum Assembly - 7K lb E-Z Lube Axle - 12" # 42866UC3-EZ. It is important to note that this assembly works specifically with a lug pattern of 8 on 6-1/2, so your tires need to match that pattern.

For the brakes that work with the Dexter hub assembly, the Dexter Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies # 23-180-181 will do the trick.

expert reply by: Bob C

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Answer 1

In order to choose the correct Timbren Axle-Less Suspension for your travel trailer, you just need to start by knowing what capacity you need. You're sure to find the system with the right capacity for your trailer, because they have capacities…

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Answer 2

Torsion axles use internal rubber cords to provide the suspension motion and they really are not practical to repair/rebuild. Certainly any axle that was damaged in an accident should be replaced purely for safety reasons. It is potentially possible…

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Answer 3

There isn't a set dimension for that on trailers. Typically axles are custom ordered to the specs needed. They order the spring seat to seat dimension for mounting to the trailer and then the hub face to face dimension for what will clear the…

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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

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 6

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 7

A BT8 spindle would have a diameter of .99 of an inch where the bearings would both install and would have a diameter of 1.24 where the great seal would ride. That would require a hub part #AKIHUB-440-2-1K for an idler hub. A BTR spindle would have…

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Answer 8

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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Answer 9

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 10

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 11

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 12

Depending on how the trailer was made, there will be a few spots you can check to identify the axle. First, if the trailer was pre-made by a specific company, you may be able to find this information in either the paperwork or on a placard somewhere…

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