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Old 02-27-2012, 09:14 AM   #1
dreamers2010
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G614's on our old rims

Our 2009 3605 came with Marathons. We had a blow out last October so switched them all 4 out to G 614's. During the switchover we noticed our rims were not rated for their PSI. Due to the rush and the fact that the dealer did not have needed rims we put the 614's on our old rims and only inflated to 80#s. What are we doing to our tires? Our we hurting them? Hate to trade our pretty aluminum wheels for the steel ones. What expense are we looking at and where do we go to get the rims.

We are fulltimers so live in the RV. Any advice would be greatly appreciated.

Thanks,

Judy and Bob
 
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Old 02-27-2012, 09:46 AM   #2
bncinwv
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If the tires provide enough weight capacity at 80#, I would think that you are okay. A load table will tell you that at 80 psi, your tires will carry 3042. Your rig shows a loaded weight of around 15,500 # so at first glance it would appear that you are overloading your tires unless your pin weight is north of 3300 pounds. Accurate weighing of your rig will be the only way to know if the tires as inflated are capable of handling the load. Another option is to contact Tredit at Tredit.com and see if they can help with the upgraded rims and that way you can get pretty shiny ones to replace them. Obviously the steel rims are going to be cheaper. Here is what came on our rig that will handle the 110 psi 614's: T-04 Rims. Other choices can be found on-line at various sites.
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Old 02-27-2012, 01:20 PM   #3
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Tire pressure is a touchy subject and there are many trains of thought. My opinion and only that, but I prefer to keep the pressure up, not all the way to 110, but close. My reasoning: The side to side forces applied to these tires during tight turns and getting into tight camping spots puts a lot of pressure on the side walls and you need enough pressure to keep from breaking the bead off the rim. I prefer to err on the higher pressure side rather than risk popping a tire off the rim (I know, chances are pretty slim, but it can happen without enough pressure)
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Old 02-27-2012, 01:33 PM   #4
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Quote:
quote:Originally posted by mhs4771

Tire pressure is a touchy subject and there are many trains of thought. My opinion and only that, but I prefer to keep the pressure up, not all the way to 110, but close. My reasoning: The side to side forces applied to these tires during tight turns and getting into tight camping spots puts a lot of pressure on the side walls and you need enough pressure to keep from breaking the bead off the rim. I prefer to err on the higher pressure side rather than risk popping a tire off the rim (I know, chances are pretty slim, but it can happen without enough pressure)
X2 on using most of the available pressure. Contact Tredit, they've been fair with other members.
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Old 02-27-2012, 01:51 PM   #5
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I've had 614's on our 2008 3400 for 4 years with about 30,000 miles on them and haven't had any problems. I am still running the original TR6 wheels at 100 lbs.pressure. I would strongly advise a TMS if possible.
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Old 02-27-2012, 01:51 PM   #6
bncinwv
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Higher pressure is fine, provided you have the rims to handle it and the inflation is in accordance with the manufacturers recommended ranges. In this case the tires are specified to carry certain loads at certain pressures, and don't forget that the rims are only rated to 80 psi. That does not mean that if you run 80 psi that the tires are underinflated. If you are vastly overinflating the tires based on their recommended loads then you are possibly subjecting the tires to conditions that they are not rated for (for instance inflating to 110 psi when the load tables clearly say 90 psi), which in most cases would result in the center of the tires wearing abnormally faster than the rest of the tread. The proper inflation based upon Goodyear's own recommendations is to know what weight the tires are supporting (requires weighing the rig) and inflate accordingly. I don't believe Goodyear would put out a load table that specifically tells a person to use pressures between 80-110 psi if they were not confident that the tires would be inflated properly at those pressures. I am far from a tire expert but I strongly believe that if a company provides instructions for the proper use of their products, there is a reason for them providing that information. It is a personal choice to inflate higher than what is recommended, but as for me, I will abide by the load inflation tables. As always, this is presented based upon my opinion, research and experience and is provided herewith in an effort to provoke more responses and lengthen the thread, Hee Hee!
P.S. The best advice is to pm or email LonnieB if you want a professional's guidance with regards to your questions.
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Old 02-27-2012, 11:21 PM   #7
Phil P
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Hi

Listen to Bingo he’s got it correct. The tire weight to pressure chart is on Goodyear’s web site; by the chart our tires are maintained at 90 psi. We have 30,000 on them without any problems.

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Old 02-28-2012, 08:16 PM   #8
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Quote:
quote:Originally posted by bncinwv

Here is what came on our rig that will handle the 110 psi 614's: T-04 Rims. Other choices can be found on-line at various sites.
Bingo
So our 2011/2012 models do have 110 psi rated wheels that can be used with the 614's?

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Old 02-29-2012, 12:51 AM   #9
bncinwv
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Greg,
Look on the back of the rim, if they are stamped 3750 pounds, they are rated for 110 psi. If these are the rims:



they are rated for the 614's. If you have different rims, you can go to Tredit.com and the specifications for their rims (Montana supplier) can be found on the web page.
Bingo
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Old 02-29-2012, 02:36 AM   #10
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Quote:
quote:Originally posted by bncinwv

Greg,
Look on the back of the rim, if they are stamped 3750 pounds, they are rated for 110 psi. If these are the rims:

they are rated for the 614's. If you have different rims, you can go to Tredit.com and the specifications for their rims (Montana supplier) can be found on the web page.
Bingo
Thanks Bingo, those look like the ones we have from the pics we took. Almost have enough miles on the truck now, so hopefully finally going to pick up the trailer in a couple weeks so can check then.
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Old 02-29-2012, 03:03 AM   #11
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I will only add, that if you are considering the 614's, you will not be sorry. If the rig is still at the dealer, you may be able to arrange a swap. That is the approach we took and got a $500 credit for the used marathons (as soon as they leave the factory they are used). The dealer may well be able to use the marathons on another rig. Worth a try, all they can do is say no.
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Old 02-29-2012, 12:43 PM   #12
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Quote:
quote:Originally posted by bncinwv

I will only add, that if you are considering the 614's, you will not be sorry. If the rig is still at the dealer, you may be able to arrange a swap. That is the approach we took and got a $500 credit for the used marathons (as soon as they leave the factory they are used). The dealer may well be able to use the marathons on another rig. Worth a try, all they can do is say no.
Bingo
Thanks for the suggestion, I'll give that a try.
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Old 03-02-2012, 10:59 AM   #13
dreamers2010
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Thanks for all the input. I think we need to contact Tredit and see what happens.
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Old 03-02-2012, 11:35 AM   #14
Ozz
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Judy,
Here is a copy of my start of a thread on the wheels a few month's ago:

Call or email Tim the V.P. at Tredit, they will work with you.
Ozz Jim

Bingo, your wheels: the TO2's are rated for 3750, as are all the newer TO2 wheels, you asked me to ask, I did.
I was on a conference call with Tim and Missy, also in sales at Goshen. tball@tredittire.com
The stickers were given out in error, but that does not mean that the 80# rated wheels are not safe with the 110# tire pressure. That is not a quote from Tim.
The wheels have a lifetime warranty for the original owner, if one fails, Tredit will replace it. They will sell you 3 that are new to match the wheel for pretty much cost.
He told me I could pass along his email if any of you wanted him to respond, he couldn't have been more responsive.
We talked for 45 minutes, Tredit wants to clear up any problems and make any information available to the members of MOC
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Old 03-02-2012, 12:27 PM   #15
jjackflash
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Here's the letter that was sent to me by Tredit. Note the date!
Jack


Message flagged

Wednesday, May 14, 2008 10:20 AM

You are correct. This wheel has been re-rated to have a capacity of 3750#
with the 110psi. This wheel is rated for the "G" rated tires.

Thank you,
Missy Rogers
Inside Sales Manager
Tredit Tire & Wheel Co.
57941 Charlotte Ave.
Elkhart, IN 46517
574/293-0581 ext. 110
574/294-3239 (fax)
mrogers@tredittire.com


----- Original Message -----
From: "Jack Craig"
To: "Missy Rogers"
Sent: Tuesday, May 13, 2008 4:32 PM
Subject: Re: Rim ID


Hi Missy,sorry to bother you but I have been told that
the TR6 wheel that you refer to be low has been
re-rated at 3750 @110 PSI ? Is this true?
If so,I should have no problem mounting G rated tires?
Thanks Missy.
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Old 03-02-2012, 01:06 PM   #16
Ozz
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They came out and stated that was a mistake, and de-rated them.
I'll see if I can find that thread.

http://www.montanaowners.com/forums/...ad.php?t=43488
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Old 03-02-2012, 01:14 PM   #17
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EDIT: Moved to different thread.


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