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01-15-2012, 07:32 AM
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#1
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Senior Member
Join Date: Oct 2011
Location: "Where we Park It"
Posts: 1,071
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Changing Pinnacle Tires from "E" to "G" Rated
Our 35LKTS Pinnacle came from Jayco with made in China, Goodyear Marathons that are "E" Rated.
We will be traveling from Florida to Texas and on to California this year and are very concerned about these tires holding up under such a large heavy 5th Wheel and are looking at changing to "G" Rated tires before heading West.
Our rims that came on the Pinnacle are rated at 110 PSI by the rim manufacturer so we can make the change on the current rims.
Looks like the only "American Made" G Rated tire is the Goodyear G614 RST, but wow they are expensive.
There have been some negative comments on the Goodyear G614's in the past but looks like Goodyear has stood behind their product and has corrected their manufacturing process on the G614 RST.
Looks like our current plan is to bite the bullet and get the G614's unless someone has a better plan or idea.
Guess to help offest the cost, we will put the Marathons on Craigslist and sell them as they have less than 2k miles on them and are still in great shape and should work well on a lighter RV.
__________________
Robert & Bale the "Traveling Dog"
SOB
2012 GMC 3500HD DRW
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01-15-2012, 09:56 AM
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#2
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Senior Member
Join Date: Nov 2011
Posts: 141
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I have been running the G614 for two years with no problems. Make sure that you have proper clearance going from E to G. I highly recommend a tire monitoring system.
Don
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02-07-2012, 10:08 AM
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#3
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Junior Member
Join Date: Apr 2011
Location: Comox BC Canada
Posts: 9
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I changed my tires to the G last summer so far no problems, the OEM E tires had two wear out and one blow out. The G 's are heaver and they are stiffer I run the max tire pressure 60psi for the E tires because the I belive the rims are only rated for the E's. Also had the frame cross members installed by dealer there cost now I will have the morryde wet bolt kit installed when I get back home this will be my cost I will do this because of the heaver tires.
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Richard Gaudet
2009 37RLQS
2008 GMC 3500 DRW
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02-07-2012, 11:27 AM
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#4
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Senior Member
Join Date: Oct 2011
Location: "Where we Park It"
Posts: 1,071
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Quote:
Originally Posted by Richard Gaudet
I changed my tires to the G last summer so far no problems, the OEM E tires had two wear out and one blow out. The G 's are heaver and they are stiffer I run the max tire pressure 60psi for the E tires because the I belive the rims are only rated for the E's. Also had the frame cross members installed by dealer there cost now I will have the morryde wet bolt kit installed when I get back home this will be my cost I will do this because of the heaver tires.
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???
60 Psi sure seems low for a G Rated LT tire.
From Goodyears Website on a LT235/85R16 G Rated Tire
110 PSI = 3750 Load
100 PSI = 3550 Load
90 PSI = 3300 Load
85 PSI = 3170 Load
Our Pinnacle has the Sendel T03 - 8 Lug Rims
The Sendel website Spec Sheet shows the Load Rating of our rims at 3580 lbs @ 100 PSI which falls in line with using a G Rated Goodyear at 100 PSI = 3550 Lbs Load on our 7000 lb Dexter Axles.
Sendel Website Data
http://www.sendelwheel.com/products_...heel_name2=T03
Item Number---Size-----Bolt Circle------ Offset---Center Bore-----Load Rating
T03-66866T---16X6---8/6.50 (8/165.1)---+0--------4.9----------3580 @ 100 PSI
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Robert & Bale the "Traveling Dog"
SOB
2012 GMC 3500HD DRW
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02-07-2012, 11:43 AM
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#5
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Site Team
Join Date: Jan 2011
Location: James Island, SC
Posts: 23,423
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A E rated tire is 80 psi?
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Moderator
2011- 351RLTS Eagle, MorRyde suspension/pin box,
2017- F350 6.7 PSD Lariat FX4,SRW, SB,CC
Hughes PWD SP-50A, TST TPMS
Gator roll-up bed cover
B&W Turnover ball, Companion Std hitch
Can't find what you're looking on JOF? Try Jayco Owners Forum Custom Google Search
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02-07-2012, 11:47 AM
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#6
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Senior Member
Join Date: Oct 2011
Location: "Where we Park It"
Posts: 1,071
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Quote:
Originally Posted by norty1
A E rated tire is 80 psi?
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E = 80 PSI Max
G = 110 PSI Max
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Robert & Bale the "Traveling Dog"
SOB
2012 GMC 3500HD DRW
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02-07-2012, 02:27 PM
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#7
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Site Team
Join Date: Jan 2011
Location: James Island, SC
Posts: 23,423
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Yes I was just wondering where the 60 psi came from. I have checked the rims on mine and they are rated for G tires if I decide to go that route.
I always run my E tires at the 80 psi pressure.
__________________
Moderator
2011- 351RLTS Eagle, MorRyde suspension/pin box,
2017- F350 6.7 PSD Lariat FX4,SRW, SB,CC
Hughes PWD SP-50A, TST TPMS
Gator roll-up bed cover
B&W Turnover ball, Companion Std hitch
Can't find what you're looking on JOF? Try Jayco Owners Forum Custom Google Search
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02-07-2012, 02:38 PM
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#8
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Senior Member
Join Date: Oct 2011
Location: "Where we Park It"
Posts: 1,071
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Quote:
Originally Posted by norty1
Yes I was just wondering where the 60 psi came from. I have checked the rims on mine and they are rated for G tires if I decide to go that route.
I always run my E tires at the 80 psi pressure.
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I agree, I always run my E Rated GY Marathons at 80.
Guess I need to got our Pinnacle weighted to see just how much weight is really on those Marathons.
Got a TST Tire Pressure and Temperature monitoring system today, installed and setup with no problem.
__________________
Robert & Bale the "Traveling Dog"
SOB
2012 GMC 3500HD DRW
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02-07-2012, 03:29 PM
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#9
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Senior Member
Join Date: Dec 2009
Location: Maplesville - Home Base
Posts: 3,059
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I too will be going to the G614's Rob, but since I only have 1,000 miles of towing scheduled for this year (two five hundred mile round trips) I'm going to wait until this time next year and hope I don't have a problem. I have the "E" rated Marathons now also.
I did weigh my Designer when it was loaded on my way to Florida last spring on my way to my host position. The weight on the trailer axles was 11,850 lbs (I have the Onan generator also per my signature line). So I was still within the weight range of the "E" rated tires, but I want a little more cushion with the "G" rated.
My wheels are also rated for 110 psi. I crawled under and looked at the wheels and that pressure is confirmed cast right into the inside of the wheel.
Now to float a loan to pay for the G614's. Whew!!!!!
__________________
Ed
KM4STL
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50X, TST Systems 507 TPMS, RV Flex Armor Roof
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02-07-2012, 04:12 PM
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#10
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Senior Member
Join Date: Oct 2011
Location: "Where we Park It"
Posts: 1,071
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Our Pinnacle's Dry Weight on the Jayco Label is 12,981 lbs
Just do not know how much we have added to it with Battery, Propane, etc and Stuff!!!!
Will try stop at a CAT Scale when we head back up to North Fla in a couple of weeks.
Would really like to upgrade to the "G" Tires before heading to Texas in March
__________________
Robert & Bale the "Traveling Dog"
SOB
2012 GMC 3500HD DRW
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02-07-2012, 04:22 PM
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#11
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Senior Member
Join Date: Dec 2009
Location: Maplesville - Home Base
Posts: 3,059
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The weight of mine, per the yellow label, as it left the factory was 13,181. That includes, per the label, full propane and full gasoline in the tank for the generator. That does include my generator as well.
When I weighed it last year I had added my "stuff" and had about 1/3 of a tank of fresh water. I had also replaced the original 12v battery (single) with two Trojan T105's.
Remember, the balance of the total weight is on the truck (pin weight), but the weight on the trailer axles per my weight last spring was 11,850 as I reported earlier.
__________________
Ed
KM4STL
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50X, TST Systems 507 TPMS, RV Flex Armor Roof
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