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10-28-2020, 08:06 AM
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#1
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Junior Member
Join Date: Sep 2010
Posts: 28
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Tire Question?
I have a 2014, 210UDS.
I recently replaced a Maxxis M8008,size 205/75R14 that had tread separation. The tires I had were all "C" rated tires. The replacement tire sent was a 6 ply "D" rated tire.
My question is: can C rated and D rated tires be mixed? The C rated tires would carry 50psi and the D rated would carry 65 psi. Should I carry only 50psi in the D rated?
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2014 Fun Finder X 210 UDS
2019 GMC Yukon
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10-28-2020, 12:08 PM
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#2
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Senior Member
Join Date: Oct 2017
Location: SoCal
Posts: 328
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I found this Expert Reply on eTrailer and believe the take-away is to not mix on the same axle:
We do not recommend mixing tire types, sizes or load ranges but for example in the case of a spare tire that will be used for only a short distance (and at or below its speed rating of 65-mph) it is not an absolute disaster to have differently-rated tires on the trailer for a brief period. I do not recommend having different tires in use on the trailer on an ongoing basis.
Different load ranges will have different psi pressure requirements and will deliver different weight capacities. They may also have noticeably different ride characteristics depending on their age, tread wear and ambient temperature conditions and on the trailer load. If you had to mix tires it would be better to have them be the same on any given axle and have the axle with the higher-rated tires be the one bearing the greater portion of the trailer load.
Tread width can vary very slightly between brands of the same size tire or between radial and bias types of the same size but these differences will be subtle since they all have to meet the overall width specification
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2016 F281BIKS, Added Renogy DC-DC charger to better charge deep cycle batteries.
2003 F250 7.3L Powerstroke Crewcab longbed 20K lbs GCWR
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10-28-2020, 12:15 PM
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#3
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Senior Member
Join Date: Oct 2017
Location: SoCal
Posts: 328
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Here is a second Expert Replay which points out the D range tires will be stiffer than C and I would conclude that is why they should not be mixed on the same axle.
A higher load range tire has a higher ply rating but it will also produce a rougher ride ... The key is that trailer tires should always be inflated to the maximum psi indicated on the tire. This is because of how they are constructed, with a thick sidewall, and if under inflated they can produce excessive heat and lead to failure.
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2016 F281BIKS, Added Renogy DC-DC charger to better charge deep cycle batteries.
2003 F250 7.3L Powerstroke Crewcab longbed 20K lbs GCWR
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11-01-2020, 02:31 PM
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#4
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Member
Join Date: Dec 2014
Location: Southern Utah
Posts: 91
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LEWR, according to Goodyear, trailer tires should be inflated according to their "load". The MAX pressure listed on the tire itself is the Max pressure for the Maximum load. Check here For the Goodyear Trailer tire inflation guide:
https://www.goodyearrvtires.com/pdfs/rv_inflation.pdf
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11-02-2020, 07:21 AM
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#5
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Senior Member
Join Date: Apr 2017
Location: Fort Saskatchewan Alberta
Posts: 243
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Quote:
Originally Posted by LEWR
I have a 2014, 210UDS.
I recently replaced a Maxxis M8008,size 205/75R14 that had tread separation. The tires I had were all "C" rated tires. The replacement tire sent was a 6 ply "D" rated tire.
My question is: can C rated and D rated tires be mixed? The C rated tires would carry 50psi and the D rated would carry 65 psi. Should I carry only 50psi in the D rated?
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If they are the original tires on your 2014 I would replace them all. I just replaced our 2015 tires as they were wore out tread wise. I would not feel comfortable traveling on 6 year old tires. If one is separating the others are not far behind in my experience. My tire shop replaced all 4 on our 2015 210uds for $500 Canadian. Cheap insurance to avoid a tire failure and risk damaging the trailer wheel openings and body or worse. Silverado
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2015 FunFinder 210uds, 2014 Silverado LTZ-Z71 Regular Cab Short Box, 5.3l with towing package
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11-02-2020, 09:28 AM
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#6
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Senior Member
Join Date: Jan 2012
Location: South Dakota
Posts: 3,106
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Quote:
Originally Posted by mjpguy
LEWR, according to Goodyear, trailer tires should be inflated according to their "load". The MAX pressure listed on the tire itself is the Max pressure for the Maximum load. Check here For the Goodyear Trailer tire inflation guide:
https://www.goodyearrvtires.com/pdfs/rv_inflation.pdf
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I simply run my Goodyear Endurance tires at max pressure and don't give it another thought. Just keep it simple and don't complicate things.
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2012 Fun Finder XT 276 Toy Hauler & Harley Davidson Ultra Classic with Condor wheel chock
2014 Dodge Ram 2500 AT 4X4 Crew Cab 6.4 L Hemi, 373 gears, tow package, Rambox option, Revolver X2 tonneau cover, Equal-I-zer anti-sway hitch.
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11-11-2020, 06:58 AM
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#7
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Junior Member
Join Date: Sep 2010
Posts: 28
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I just heard from Maxxis Tire Company's support. They said," Although not recommended it is okay to mix different load range tires on the same trailer". They also said to run the tires at the same pressure and not exceed the max psi on any tires. They also said if I went to all D rated tires to make sure the rims are rated for 65psi. I will run the 3 C rated tires as well as the 1 D rated tire at 50 psi. I plan to watch the temp. on the D tire.
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2014 Fun Finder X 210 UDS
2019 GMC Yukon
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11-14-2020, 07:05 AM
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#8
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Senior Member
Join Date: Apr 2017
Location: Fort Saskatchewan Alberta
Posts: 243
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Have you looked at the DOT number on the 3 C load tires, the last 2 digits indicate the year of manufacturing. Example 4113 would mean it's a 7 year old tire. If so be careful trailer tires have known to separate because of being parked on sharp rocks and gravel for extended periods of time. My brother just last year had one tire separate 30 miles from home and replaced it with his spare. By the time he got to his destination 2 more started to bulge and separate. He ended up taking the other 3 tires off in the campground and hauling to a tire shop to replace while on vacation. Not much fun. Just be careful is all I am suggesting. All his tire where 90% tread left and looked good but were 8 years old.
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2015 FunFinder 210uds, 2014 Silverado LTZ-Z71 Regular Cab Short Box, 5.3l with towing package
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11-15-2020, 07:53 AM
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#9
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Senior Member
Join Date: Apr 2017
Location: Fort Saskatchewan Alberta
Posts: 243
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This is what you are looking for on a tire. Like mentioned in the previous post, the first 2 numbers are the week and last two are the year of production. Trailer tires looks can be deceiving. Age is the biggest cause of failure on tires. Most people do not wear them out on their rv, Unless they are stored inside I wouldn't trust used trailer tires over 7 years old. Silverado
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2015 FunFinder 210uds, 2014 Silverado LTZ-Z71 Regular Cab Short Box, 5.3l with towing package
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11-15-2020, 03:02 PM
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#10
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Junior Member
Join Date: Sep 2010
Posts: 28
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Thanks guys, what a great webb site. I will keep a record of the age of each tire and replace them at 5 years old. Hopefully not have problems.
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2014 Fun Finder X 210 UDS
2019 GMC Yukon
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