Recommendations For Upgrading a 5.70-8 Trailer Wheel To Something Larger

Question

Question:

I have a lightweight work trailer with 4 bolt 5.7x8 wheels/tires rated at 1k. I honestly don't know the rating of the trailer (bought used, but 1k is more than I need) See attached image. They are 8" or so in diameter for the wheel and 12" or so for the tire + wheel. I want to increase the diameter of the tire from 12" to something "bigger" not for capacity, simply for highway driving stability and reduced wear and tear due to the lower RPM per tire. I bought it used, and I haven't done a bearings check, but likely could use replacement hubs as well. My question is this: 1) What size should I move to? Im willing to modify the fender, its pretty open and easy to do on this trailer. 2) Are the axel diameters standard for this size wheel? Would a 5 bolt work better for a larger tire. 3) Should I stay with a 4bolt or move to a 5 4) What hubs should I buy? Are the pre-greased? Do you sell trh grease as well 5) If I am replacing hub, should I replace the spindle as well since I have it open? 6) What tire/wheel should I get?

asked by: Scott A

0

Expert Reply:

We definitely have options to upgrade your current wheels. You will want to make sure you have at least 3 inches of clearance from the top of the tire to the bottom of the fender, but if you have the ability to modify the fender, this should not be much of an issue. You can also stick with the 4 on 4 bolt pattern if you like, but swapping that to the 5 on 4-1/2 bolt pattern will allow for even more options.

The first option if you end up staying with the 4 bolt pattern will be the Kenda 5.30-12 Bias Trailer Tire with 12" White Wheel # AM30780. This will have a 65 mph speed rating and is rated up to 1,045 pounds at 80 psi.

Next will be the Kenda 205/65-10 Bias Trailer Tire with 10" White Wheel # AM3H460. This will actually have a higher speed rating of 87 mph and a higher capacity of 1,650 pounds at 90 psi, and between the two options, would be the way I would go if I was doing this.

Axle diameters are not really a standard at this size and there can be a few different bearing combinations that could have been used. As a quick example, the Idler Hub Assembly for 2K Axles # AKHD-545-2-1K will use the inner and outer bearing # L44643 that has a 1 inch inner diameter, but the Idler Hub Assembly for 2K Axles # AKIHUB-440-2-EZ-2K will use the inner and outer bearing # L44649 that has a 1.063 inner diameter. These both are pre-greased and have the same 4 bolt pattern and are both designed for 2,000 pound axles, so the only way to know what you have is to remove a hub and check.

If you spindle looks good and there is no bluing from overheating or pitting from rust, then there will be no need to replace them.

expert reply by: Lazer S

0

5.70-8 Trailer Tire and Wheel With 4 on 4 Bolt Pattern
(click to enlarge)

Answer 1

For a much wider setup that will have right at the same overall diameter and bolt pattern we have the 205/65-10 tire and wheel combos like part #AM3H460. This will be basically twice as wide as what you have now.

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Answer 2

The 5.70-8 tire size is about the largest diameter tire available for an 8 inch rim. Your current tire is about 18 inches in diameter and has a tread width of 5.9 inches. A 215/60-8 tire is about the same diameter, but has a wider tread width at 8.9…

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Answer 3

Provided that the manual for the camper and the camper itself match, that is unique problem. I am inclined to lean towards the sticker on the trailer in this case. But, to be sure, you will need to determine the axle capacity and choose the tires and…

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Answer 4

You will want to replace your tires with properly sized replacement tires. You would want a Kenda K353 Bias Trailer Tire #AM10013. This tire is a 5.70-8 sized tire and should work very well for you. If you need a wheel also you may be interested in a…

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Answer 5

I may have a potential solution for you, but the tire size 165/65-8 is only available in load range C. To step up in load range, you will have to switch to tire size 215/60-8 Tire and Wheel #AM3H325 or 5.70-8 #AM30155 which are both slightly larger…

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Answer 6

The main difference between a 5.70-8 trailer tire and a 215/60-8 will be the width. Your current tire is about 5.9 inches wide and the 215/60-8 is about 8.9 inches wide. They will both be about the same height. If your current wheel setup has more…

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Answer 7

A larger trailer tire basically wins in every category like you mentioned. Less rolling resistance, less affected by bumps in road for smoother ride quality, and bearings/hub spins less so in theory less wear and tear. So as long as you have room for…

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Answer 8

To select a set of replacement idler hubs for your Fleetwood Destiny trailer you want to match up a few characteristics from your originals. These include the axle weight capacity, wheel bolt pattern and the bearing set used in the hubs. A…

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Answer 9

As long as you have clearance for the additional width of the wheel and tire and for the additional height of the tire, you can use the Kenda 215/60-8 Bias Trailer Tire, item #AM3H290, which has a 7 inch wide, 8 inch diameter White Wheel, 4 on 4 inch…

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Answer 10

A 4 on 4 inch bolt pattern is measured diagonally on center. The first number indicates the number of lug holes and the second number indicates the diameter of the circle that those holes sit on. Check out the wheel bolt pattern help article that I…

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Answer 11

Yes, you can change from a 4.50-12 to a 4.80-12 trailer tire like the Kenda K353 Bias Trailer Tire - 4.80-12 - Load Range C #AM10062. I was unable to find the rim size a 4.5-12 tire uses, but a 4.80-12 tire fits 12" x 4" rims, so if…

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Answer 12

A 5.30x12 tire such as part #AM10064 is around 21.7" diameter x 5.3" wide whereas a 5.70x8 tire such as part #AM10013 is around 18.1" diameter x 5.7" wide. Therefore, the new tire will be 3.6" taller x .5" narrower than…

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Recommendations For Upgrading a 5.70-8 Trailer Wheel To Something Larger

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