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Old 03-02-2015, 02:57 PM   #11
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As long as you go back to.your selling dealer for service I doubt very much that you will ever have a warranty problem. The exception being you do something to directly cause the damage/failure or your dealer is a jerk.
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Old 03-02-2015, 03:19 PM   #12
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So it looks like now I need wheels as well. So if I need wheels why not go to the 17.5 inch option. Here is the reply I received from Jayco this morning.

"According to our wheel/tire supplier the wheels on your unit are rated at 3580lbs and 80 psi. You would need to upgrade the wheels to go to the G rated tire. Hope this helps."
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Old 03-02-2015, 03:31 PM   #13
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If you base air pressure on load and not maximum pressure as listed on the tire doesn't a G rated tire carry the same weight as an E at a lower pressure?
ex: E =3,500 at 80 G= 3,700 at 80. (these are not exact numbers just an example)
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Old 03-02-2015, 03:58 PM   #14
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Are you suggesting keeping the current rims but running the better tire at 80 psi? I am not a tire guru so I don't have a handle on the ramifications of that decision. Wouldn't side wall flexing and heat be an issue running 30 psi under max?
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Old 03-02-2015, 04:06 PM   #15
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I checked the Goodyear chart and running the G614 at 80 psi would only get me 3042 lbs. per tire. That's 538 lbs. per tire less than my current set up. My axle weight (at full GVWR) is 12,400 so running the 614's at 80 doesn't even allow me to fill the camper up.

Still looks like I have three options, 1: Keep the China bombs. 2: Buy better 80 psi tires. 3: Buy 110 psi rims and get the 614's. 4: Upgrade to 17.5 inch rims and rubber.
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Old 03-02-2015, 04:07 PM   #16
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cariboocreek,

(1) Get a hold of an inflation chart for your desired tire from the manufacturer.
(2) Visit your friend the Cat scale to know your weights.
(3) Inflate according to chart when you know the weights.

Happy tires!

This is pretty much what I do. My tires are much more capable than the actual load. Inflated quite a bit below max inflation. They always run cool.
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Old 03-02-2015, 04:09 PM   #17
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cariboocreek,

Just read your follow-up post. I am anal retentive regarding tires and safety. I would go the 17.5 inch route.

I worked my approach up on paper with the goal of running at 80% of specified capacity. Actual result is 78%.
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Old 03-20-2015, 04:34 PM   #18
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Jayco customer service is no service in MO.
My question to them was "I have 15" wheels. I need a larger tire size to raise the height to get a level pull with my truck. Will a 16" tire and rim fit. I'm looking at getting
ST-T11-66655BM 16x6 T11 Sendel Aluminum Trailer Wheel, 6 on 5.50 Lug, 3,200 lb Capacity and ST-C5151431 ST235/85R16 Carlisle Radial Trailer Tire LR E 3,640 lb Capacity.
The reply; "Unfortunately, we can not recommend put anything on the unit that it did not come with or is not an option. '
My response; "I wasn't asking for a recommendation, I asked if it would fit?"
Their reply; "I’m sorry but we do not test in the factory for that size, so
we could not verify that that application would work."

I'm checking with the axle mfg.
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Old 03-20-2015, 04:46 PM   #19
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Quote:
Originally Posted by F14man View Post
Jayco customer service is no service in MO.
My question to them was "I have 15" wheels. I need a larger tire size to raise the height to get a level pull with my truck. Will a 16" tire and rim fit. I'm looking at getting
ST-T11-66655BM 16x6 T11 Sendel Aluminum Trailer Wheel, 6 on 5.50 Lug, 3,200 lb Capacity and ST-C5151431 ST235/85R16 Carlisle Radial Trailer Tire LR E 3,640 lb Capacity.
The reply; "Unfortunately, we can not recommend put anything on the unit that it did not come with or is not an option. '
My response; "I wasn't asking for a recommendation, I asked if it would fit?"
Their reply; "Iím sorry but we do not test in the factory for that size, so
we could not verify that that application would work."

I'm checking with the axle mfg.
What would you expect them to say? If they haven't tested it, they haven't tested it.

I manage a sales team, we sell medical capital equipment to hospitals. Constantly we are asked about modifiactions and/or off label use with the equipment. All we can say is that is not the intended use and don't recommend it. If pushed I can let them know it their equipment to do as they please, but use other than as intended will limit or eliminate our responsibilty and liability.

Essentally that is what Jayco told you. Now changing tire size is really not as extreme of an example as medical equipement. But liabilty is liabilty and they hedge there risk just as we do as a medical device company.
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Old 03-20-2015, 04:47 PM   #20
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Quote:
Originally Posted by F14man View Post
Jayco customer service is no service in MO.
My question to them was "I have 15" wheels. I need a larger tire size to raise the height to get a level pull with my truck. Will a 16" tire and rim fit. I'm looking at getting
ST-T11-66655BM 16x6 T11 Sendel Aluminum Trailer Wheel, 6 on 5.50 Lug, 3,200 lb Capacity and ST-C5151431 ST235/85R16 Carlisle Radial Trailer Tire LR E 3,640 lb Capacity.
The reply; "Unfortunately, we can not recommend put anything on the unit that it did not come with or is not an option. '
My response; "I wasn't asking for a recommendation, I asked if it would fit?"
Their reply; "Iím sorry but we do not test in the factory for that size, so
we could not verify that that application would work."

I'm checking with the axle mfg.
This is a legal answer. If they said yes and you had a problem they would be at fault, at least according to a lawyer. I can understand there attitude, with our litigious system they have to protect themselves. Does your tire guy say the same thing?
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