Troubleshooting Trailer Tire Failure for 205/75-15 Load Range D Tires

Question

Question:

I have a Pace American 6x10 Enclosed trailer. I have now had two catastrophic failures of tires that have resulted in the fenders being ripped off going down the interstate. 2 separate trips. My luck isnt that horrible The outside temperature on both of these trips was approximately 90-95 degrees. I was using 205/75/15 D rated tires and traveling at 60mph. I try to keep the weight evenly distributed with a little more from the tongue to the axle. Due to the heat it was recommended to me by a OTR trucker to drop the psi by 5psi to compensate for the temps. So, what went wrong?

asked by: Mark

0

Expert Reply:

I am sorry to hear that you keep having blowouts. I have a few other things to offer to help out your situation but it does sound like you are doing some research.

The first thing to check is your weight. You are correct that you want the majority of your weight to be slightly in front of your axle but the ideal tongue weight is 10-15% of the weight of your trailer. I have attached a helpful article on tongue weight for more info on this.

The weight is also related to what your tires are rated for as well. I am not sure how much your loaded trailer weighs, but our 205/75-15 load range D tires, like part # TR20515D, have a rating of 2,150 lbs at 65 psi. Check to make sure that your tires are filled to the psi rating on the sidewall as that is what the tire manufacturer has tested and rated the tire for. Any more or less and your weight and speed ratings are unknown as the tires will react differently.

Going 60 mph with your trailer is a good speed as most tires are rated for speeds between 65 mph and 81 mph. Aside from not lowering your psi (as you were advised to) you could have possibly damaged the side walls of your tires by hitting a curb or potholes.

If everything checks out (weight-wise) then I would make sure that the tires you are purchasing are good quality. If you are purchasing cheap tires, then that could definitely be a contributing factor especially in very hot situations. The tire I mentioned above is one of the best ones we have on our site and comes with a 2-year limited warranty and an 81 mph speed rating.

I have linked a few other trailer helpful articles that you can check out as well.

expert reply by: Jon G

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Answer 1

The rim diameter portion of the size you asked about got cut off but I believe you are asking if you can use an ST205/75R15 in place of a 205/75R15 like with the part #TR20515D that you referenced. The answer to that question is that yes you can. The…

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Answer 2

The weight capacity will be limited by your lowest rated component which may or may not be the tires. We don't recommend increasing weight capacity beyond what is specified by the manufacturer. The figures you'll need to keep in mind are…

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Answer 3

The 75 and 65 you asked about for the tire are the tire sidewall aspect ratio. When calculated, the tire that is 205/75-14 will be 1.614 inches taller than the 205/65-14 tire. I do not recommend using these tires at the same time on your trailer. It…

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Answer 4

For replacement tires I would definitely stick with radial tires since they tend to last longer, so you wouldn't want the #AM1ST86. Instead, I recommend the Karrier ST205/75R14 Radial Trailer Tire - Load Range C #AM10234. The load range C will…

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Answer 5

The general consensus is that radial tires are better if you plan on doing highway driving. Since their design allows them to run cooler than their bias-ply counterparts, they tend to last longer. The price difference between the two types of tires…

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Answer 6

Based on my research, the Trailer Hub and Drum Assembly - 8,000-lb E-Z Lube Axles #AKHD-865-8-EZ-K will be a replacement for the 90865 Rockwell hub and drum. Both of these hub and drum assemblies are 12-1/4" diameter, have an 8,000 lb capacity,…

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Answer 7

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 8

Seal 171255UC has an inner diameter of 1.719 inches and outer diameter of 2.565 inches. A seal that has those dimensions would actually be #58846. I've added a link to a video review of this seal for you to take a look at.

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Answer 9

Brake systems are not dependent on the hub bolt pattern. So you can use the Electric Trailer Brake Kit #AKEBRK-7-SA for 12 inch hub/drums or #AKEBRK-35-SA for 10 inch hub/drums. Then use #10-1-1 wire sold by the foot for your brake magnet wiring.…

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Answer 10

The number you provided, "7753400" is a patent number which corelates to the Equalizer for E-Z Flex Suspension part #013-144-03. This is for a single equalizer but if you need the entire kit it's the Dexter E-Z Flex Suspension Kit part…

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Answer 11

For your enclosed trailer application I have several suggestions for adding interior lighting that you can control directly via a switch. Since your current 4-pole trailer wiring does NOT include a 12V auxiliary power feed that could power inside…

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Answer 12

From what I could find it looks like your 122R (red) and 122Y (amber) lights measure 3.75" x 1.70" x .81". We don't have any replacement lense directly for the GLO-BRITE lights but we do have some similar lights that you could use…

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Troubleshooting Trailer Tire Failure for 205/75-15 Load Range D Tires

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