Recommended Tire and Wheels for 2002 520dvx Ranger Single Axle Boat Trailer

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Question:

I have a Ranger 520 DVX with 4500lb axle. in all of the research I did the boat, outboard,full fuel tanks, gear and trailer are around 3200-3500lb. hubs are 6x5.5 lug pattern and 4.25 center bore Diameter 0 offset. are wheels the same as tires. 2 wheels on an axle double the total capacity? for instance a 2800lb capacity single wheel..if put on the axle with another the total capacity of the wheels would be 5600lb? obviously the axle is only 4500 lb and you must not exceed your lowest load capacity so even though the wheels could handle 5600lb since it is a 4500lb axle the capcity of the assembly would be 4500lb correct? I was looking at the bobcat,lynx, or siberian wheels. would these wheels have the capacity for this trailer and how will they hold up being on a boat trailer with disk brakes and submerged in water? Also these axles as you can see have the cool hub system but I will be converting them to grease and a bearing buddy system. On those wheels would a center cap go over the bearing buddies or would you recommend leaving the center cap out of them? I am not sure if I can use the old lug nuts or need new but I am not totally sure of the tread on the stud either. I do know they are the older style ufp gold hub and rotor with oil bath. I just bought the boat and the guy said he just put new tires on it so i thought that was a plus. then found out they put goodyear marathon tires with a class c rating on the axles. st20575r15 c. For some reason they didnt get to the spare which had a 225/75r15 D tire on it. Had 2 extras that have never been mounted and they are the same as the axles. there seems to be between 3/4-1of clearance and since the original tires were 225/75r15 I dont believe I will have a clearance issue with that unless i hit a major bump that really compresses the leaf spring? although I havent had any problems yet they really are only a season old what worries me is I am taking a trip from illinois to texas next month. would you recommend a D or E rating on the tires for this with the information I gave you. I just want to make sure That I get the right parts the first time so that I do not have to send them back.

asked by: Jamie D

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Expert Reply:

You are correct in your understanding. Some people interchange the word wheel with rim, but they are the same thing and then of course you have tires. Wheels are usually rated for weights as are tires, so combinations that are made on our site will have the lesser capacity of the two for the max capacity.

As you stated, each wheel and tire is rated based on just that single side, so you will double that for your axle. You are correct if that surpasses your axle capacity, you will be restricted by the max capacity of the lesser of the two.

For your wheels and tires, I recommend the following options that have the same Westlake tires (load range E) and the options for the wheels:

ST225/75R15 Radial Tire w 15" Liger Wheel - 6 on 5-1/2 - LR E - Black # LH36FR
ST225/75R15 Radial Tire w 15" Liger Wheel - 6 on 5-1/2 - LR E - Gray # LH96FR

These combinations are rated for 2,830 lbs at 80 psi and speeds up to 75 mph. They come with a 5 year warranty on the tire, 1 year warranty on the wheel, and 2 years of complimentary roadside assistance. They come ready to install. They will work with a center cap like # LHCS108-SI60C that will fit over bearing buddy grease caps without any issues.

You can use the same lug nuts as you currently have or you can use lug nuts like # LHLR103 and lock set # RG01-150 if desired for more security. I recommend using the same spare and rotating your tires regularly for best lifespan but your current spare can be used in a pinch for a short time.

Let me know if you have further questions.

expert reply by: Jason S

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Answer 1

As the Castle Rock ST205/75R15 Radial Tire w/ 15" Liger Aluminum Wheel #LH89FR is designed for use with 1/2", we do have a few options available that will work. First we have the Lionshead Trailer Wheel Lug Nut #LHLR103. This is a very nice…

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Answer 2

The hub bore diameter is 2.59 inches of the Easy Grease Trailer Idler Hub Assembly for 3.5K Axles - 5 on 4-1/2 - Pre-Greased #AKIHUB-545-35-EZ-K. This will work with a 13" to 15" aluminum wheel and tire with a 3.19" pilot hole like the…

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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

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 5

Since both a ST145/R12 size tire, like the Kenda Karrier S-Trail #AM10130, and a 5.30-12 size tire, like the Kenda K353 #AM10068, fit a 12 inch wheel, a ST145/R12 size tire can replace a 5.30-12 size tire. Keep in mind that these tires do have…

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Answer 6

If you are needing the hub and drum assembly then you will want to go with the Dexter Trailer Hub and Drum Assembly #8-201-5UC3-EZ but if you are just looking for an idler hub then you will want part #8-213-5UC1 instead. These come with the correct…

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Answer 7

The Dexter 8-222 model hubs currently on your trailer are designed primarily for mobile home use, and these types of hubs typically use unique bearing combinations that make it really difficult to find full replacement assemblies. Mobile home parts…

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Answer 8

I can end this debate for you real fast! Trailer tires, which will have an ST in front of the size, should always be inflated to the maximum psi indicated on the tire. Trailer tires usually do not have a recommended and maximum psi indication so I am…

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Answer 9

Hey Vaughn, thanks for reaching out! The max psi rating of the Americana Aluminum Mod Trailer Wheel #AM22646 will be the equivalent to the rating of the valve stem that you install on it. The Americana Metal, Bolt-In Valve Stem #AM20906 can handle up…

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Recommended Tire and Wheels for 2002 520dvx Ranger Single Axle Boat Trailer

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