How To Find Out Which 7,000lb Axles Will Fit 2021 Trails West Snowmobile Trailer w/ 5,200lb Axles

Question

Question:

I have a 2021 trails west snowmobile trailer with 5200k axles. i want to see if you would offer a 7k axle as a direct replacement for my trailer.

asked by: Troy C

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Expert Reply:

It's possible, but I have no way of knowing which axle would fit so you'll need to either send me a picture of the axle tag on the center of the axle beam, or measure the hub face an spring seat lengths of your current axle as shown in the included diagram. You'll also need to note if you are needing a drop axle, like the # e85SR you were looking at, or a standard axle.

Keep in mind you'll also be changing you wheels as a 5,200lb axle uses 6 lug hubs where 7k axles use 8 lug, and your trailer still won't be rated to carry/tow any additional weight. While you'll have stronger axles, your frame is still the same thus not changing your towing capacities in any way.

If this is still something you want to do, just respond back with the above measurements/pictures.

expert reply by: Samuel C

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Where To Measure Hub Face and Spring Seat Of Axle
(click to enlarge)

Answer 1

I reached out to my contact at Hopkins and she said that the Hopkins Engager Push-To-Test Trailer Breakaway Kit #20400 has been tested on a variety of trailer lengths and so it will be good to use on your tandem axle trailers. The heavier gauge wire…

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Answer 2

There really isn't a particular maximum trailer weight that is used to determine when brakes need to be added to both axles of a tandem axle setup. While I do still recommend checking your local laws, I am also not aware of any general laws that…

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Answer 3

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 4

If your trailer has 7 wires running all the way back to the brakes, then yes, you can tap into the existing wiring. Each of your new brakes will have two wires for the brake magnet. One wire is for 12 volt power to the brake magnets and the other…

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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

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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Answer 8

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 9

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 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

On this page (typically below the product links) there is a helpful link section that will have the install instructions fo the Hopkins Breakaway kit part #20400 that you referenced. I also attached an install video that shows the kit installed as…

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Answer 12

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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