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03-10-2014, 02:09 PM
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#41
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Montana Master
Join Date: Aug 2010
Location: Washington Coast
Posts: 2,688
M.O.C. #10696
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Good point Tom some people just do not take care of their tires and that is what ya get
Quote:
quote:Originally posted by Tom S.
Anyone else notice that the original poster hasn't been back since acknowledging he ran the tires at 65 lbs? No wonder his 'junk tire' failed. Someone also asked how fast he was going, but so far, no answer. Despite where you stand on the Great Marathon debate, this particular issue was user induced, and not the tire's fault.
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05-09-2015, 07:42 AM
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#42
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Seasoned Camper
Join Date: Jun 2012
Location: Devon
Posts: 92
M.O.C. #12573
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Hey Guys: We also lived the Goodyear Marathon ( China Bomb ) saga. Problems with all tires. We had under 10,000 KM (6,250 Miles) on our 2013 3800 RE. Had SOB for 7 years previously with NO PROBLEMS. I am obsessive with tire care in my inspections before each trip and in my driving. The Goodyear Marathons are GARBAGE. Replaced with Firestone. Just my humble opinion !
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05-10-2015, 03:26 PM
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#44
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Seasoned Camper
Join Date: Oct 2009
Location: Gatineau
Posts: 98
M.O.C. #9851
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I am running with Goodyear Marathon tires since I bought my 5er in Sep 2009. I have had 1 blowout, which damaged the under carriage of my 5er. I have also had one flat due to road debris...no way to avoid and I had one tire replaced as I saw that the wire has separated. I always ensure I leave with 80 psi and travel no faster to 65 mph. Even thought it takes a little longer to get where we are going at least I have only had 3 problems with my Goodyear Marathon...knock on wood.
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05-11-2015, 04:58 AM
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#45
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Montana Master
Join Date: Jan 2013
Location: Depends on temps
Posts: 1,648
M.O.C. #13157
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Goodyear Marathon's are not a bad tire. Just the wrong tire for our weight's. They are fine on smaller, lighter trailers that are not towed at highway speeds.
I sold mine to a farmer who was glad to get them.
Jim
__________________
2012 Ram Laramie 3500 DRW 4x4 3.73 Tow Max Pkg B&W Companion 60 gal RDS aux fuel tank. 2014 Montana 3150RL, 2 A/C's, Leather, 6 Point Jacks, Splendede WD2100XC, Mor/ryde X-Factor, Duravis 250 tires with TST 507RV monitors. 2 x Honda EU2000's
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05-11-2015, 07:52 AM
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#46
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Montana Master
Join Date: Jan 2015
Location: Taylors
Posts: 562
M.O.C. #15948
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Quote:
quote:Originally posted by ajranch470
It's a model year 2011 Montana 3665RE not sure of production date I ran 65lbs Thsy looked like almost new tires
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Your trailer has a GVWR of 15545# and is setting on two 6750# GAWR axles. Your OEM (LRE) tires were marginal to start with, why would you inflate them 400# below maximum pressures? Do you know that makes them equal to a LRD. At 3000# per tire you didn't even enough load capacity to carry your trailer completely unloaded. Your tire failures were written in the sand.
Low tire inflation pressures and loss of tire inflation pressures are the number one causes of all early tire failures.
Cal
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05-11-2015, 04:17 PM
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#47
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Montana Master
Join Date: Jan 2009
Location: Centerville
Posts: 1,347
M.O.C. #9051
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Quote:
quote:Originally posted by CalandLinda
Quote:
quote:Originally posted by ajranch470
It's a model year 2011 Montana 3665RE not sure of production date I ran 65lbs Thsy looked like almost new tires
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Your trailer has a GVWR of 15545# and is setting on two 6750# GAWR axles. Your OEM (LRE) tires were marginal to start with, why would you inflate them 400# below maximum pressures? Do you know that makes them equal to a LRD. At 3000# per tire you didn't even enough load capacity to carry your trailer completely unloaded. Your tire failures were written in the sand.
Low tire inflation pressures and loss of tire inflation pressures are the number one causes of all early tire failures.
Cal
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Have they derated the axles on the newer Montana fifth wheels ? I have 2008 3400RL . It has 7000 GAWR axles ,and a 15500 GVWR .
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05-11-2015, 06:12 PM
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#48
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Montana Master
Join Date: Jan 2015
Location: Taylors
Posts: 562
M.O.C. #15948
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Quote:
quote:Originally posted by PSFORD99
Quote:
quote:Originally posted by CalandLinda
Quote:
quote:Originally posted by ajranch470
It's a model year 2011 Montana 3665RE not sure of production date I ran 65lbs Thsy looked like almost new tires
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Your trailer has a GVWR of 15545# and is setting on two 6750# GAWR axles. Your OEM (LRE) tires were marginal to start with, why would you inflate them 400# below maximum pressures? Do you know that makes them equal to a LRD. At 3000# per tire you didn't even enough load capacity to carry your trailer completely unloaded. Your tire failures were written in the sand.
Low tire inflation pressures and loss of tire inflation pressures are the number one causes of all early tire failures.
Cal
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Have they derated the axles on the newer Montana fifth wheels ? I have 2008 3400RL . It has 7000 GAWR axles ,and a 15500 GVWR .
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Here is a picture I took of a Montana 3400 certification label at a RV show this year.
http://www.irv2.com/photopost/showfull.php?photo=22027
Cal
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05-12-2015, 03:59 AM
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#49
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Montana Master
Join Date: Jan 2009
Location: Centerville
Posts: 1,347
M.O.C. #9051
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Quote:
quote:Originally posted by CalandLinda
Quote:
quote:Originally posted by PSFORD99
Quote:
quote:Originally posted by CalandLinda
Quote:
quote:Originally posted by ajranch470
It's a model year 2011 Montana 3665RE not sure of production date I ran 65lbs Thsy looked like almost new tires
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Your trailer has a GVWR of 15545# and is setting on two 6750# GAWR axles. Your OEM (LRE) tires were marginal to start with, why would you inflate them 400# below maximum pressures? Do you know that makes them equal to a LRD. At 3000# per tire you didn't even enough load capacity to carry your trailer completely unloaded. Your tire failures were written in the sand.
Low tire inflation pressures and loss of tire inflation pressures are the number one causes of all early tire failures.
Cal
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Have they derated the axles on the newer Montana fifth wheels ? I have 2008 3400RL . It has 7000 GAWR axles ,and a 15500 GVWR .
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Here is a picture I took of a Montana 3400 certification label at a RV show this year.
http://www.irv2.com/photopost/showfull.php?photo=22027
Cal
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They no longer make the 3400, must of been a different model. As I said they must have changed the axle ratings my certification label reads as stated above , 7000 GAWR on the axles and 15500 GVWR. I guess the new ones can carry more weight on less axles.
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05-12-2015, 05:27 AM
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#50
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Montana Master
Join Date: Jan 2015
Location: Taylors
Posts: 562
M.O.C. #15948
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Quote:
quote:Originally posted by PSFORD99
They no longer make the 3400, must of been a different model. As I said they must have changed the axle ratings my certification label reads as stated above , 7000 GAWR on the axles and 15500 GVWR. I guess the new ones can carry more weight on less axles.
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Unfortunately the date in the upper RH corner is obscured. Maybe it’s a 2013 model that didn’t sell because it clearly has 3400RL as the model.
The basic reason for de-rating the 7000# axles on that unit is the tire size. The ST235/80R16E tires come in three distinct load capacities, 3420#, 3500# and 3520# all at 80 psi. It would be a serious safety violation to not inform the new owner of that fact so it was just easier for Keystone to de-rate the axles to accommodate all three load capacities.
In another regulation it says that tires of the same physical size having different load capacities will default to the lowest load capacity without documentation.
Cal
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05-12-2015, 08:49 AM
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#51
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,896
M.O.C. #9561
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as stated, tires should have been at 80psi, oh well, now get your G614s.
as for parts just start searching google. good luck
here is a site: http://www.trekwood.com/
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05-12-2015, 03:00 PM
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#52
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Montana Master
Join Date: Mar 2012
Location: Davison
Posts: 786
M.O.C. #12331
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The 10th letter of the VIN# being a "C" indicates it is a 2012 model year. I'm not certain, but it would be interesting to get input from all, the 5th through 8th digits may indicate the model as a 3402. This is the way my VIN# reads as well.
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