Availability of Load Range C 5.7-8 Trailer Tire

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Question:

HI my boat trailer has 5.7-8 B trailer tires on it, and I was wanting to upgrade to C tires because they handle higher weight potentials. Ive upgraded my boat, so I wanted to make sure my trailer will be prepared for the extra weight while driving on the highway. Will theyre be any performance differences between the B and C 5.7-8 tires on the highway? As in, is one preferred over the other for highway driving? Thanks!

asked by: JAKE

0

Expert Reply:

With tire Load Ranges all that really changes between them is the weight capacity. Aside from that you would not get a noticeably different ride quality out of one over the other.

For a Load Range C in the size 5.7-8 we have the part # AM10012 which would work well.

expert reply by: Jameson C

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Answer 1

I assume you are referring to size 5.70-8 trailer tires as there isn't a size 8 x 570, and the highest speed rating for 5.70-8 trailer tires is 65 mph. There are a pair of size 5.70-8 trailer tires, and you only need to choose from the load…

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Answer 2

Yes, I will be happy to tell you which hubs will fit trailer wheel #AM20006. This is an 8 inch wheel with 5 on 4-1/2 bolt pattern. the tires that fit this size are found on 2,000 to 2,200 pound trailer axles. I have included a link to the hubs that…

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Answer 3

The Kenda K353 Bias Trailer Tire - 5.30-12 - Load Range C #AM10066 has a speed rating of 65 mph and like you mentioned a max load capacity of 1,045 lbs at 80 psi. However you should make sure that the combined maximum load rating is higher than 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

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 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

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 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

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 12

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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