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Old 06-15-2019, 08:42 PM   #11
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Sounds like normal wear as all 4 are the same. It also seems to me that when ours got about half worn out that they seemed to wear faster and the ware pattern seem to change. And wore faster. You also want to inspect the inner side of you tires. I went to rotate the tire and when I pulled the tire on the inside of 2 of them there was a 4 to 5 inch long crack in the rubber. Saved myself from a blow out replace all 4. Outsides looked great alway covered insides are under and that's where the cracks were.
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Old 06-15-2019, 08:58 PM   #12
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Tires wearing on inside

I also have a 38Gk. Mine did the same thing. when I went to have them aligned it was discovered that the axels were bent. And they way mine bent they could not straighten them. i had to change axels. If you find this is your problem and go the route I did of replacing the axels. I would advice you go with the 8k axels but keep the 7K springs. The 8k springs which I opted to go with are noticeably rougher ride. Which sets off other issues inside the coach while traveling.
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Old 06-17-2019, 04:45 PM   #13
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This thread was quite helpful. I thought mine were starting to have unusual wear pattern starting.
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Old 06-17-2019, 08:54 PM   #14
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I also have a 38Gk. Mine did the same thing. when I went to have them aligned it was discovered that the axels were bent. And they way mine bent they could not straighten them. i had to change axels. If you find this is your problem and go the route I did of replacing the axels. I would advice you go with the 8k axels but keep the 7K springs. The 8k springs which I opted to go with are noticeably rougher ride. Which sets off other issues inside the coach while traveling.
One curious thing about your comments!
When the axles are installed they are already slightly bent in the center of the axle tube to allow for the rv weight & wouldn't ever be perfectly straight. To align them they also bend them to get the proper alignment for castor & camber regardless if 7k or 8k axles. So to say they replaced because they were bent is confusing or were they bent from hitting something & were beyond repair?
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Old 06-18-2019, 05:35 PM   #15
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Bent Axels

Danny, in my case the tires begin to wear excessively. Especially on one side. I took it to the what was considered the best in the area. They have been in business for 60 years doing alignments on everything from 18 wheelers, Motorhomes and RV's. He was able to show me that the bend in the axel was off center toward the street side of the coach which was the side that was showing the excessive wear on the inside of the tires. He did try to replace the proper bend in the axels. But was unable to bring it to specs. So I opted to replace the axels with the 8K axels and springs. Also installed the CR3000 at that time. The results of going to the H rated 17.5 tires and axels is a much firmer if not rougher ride. I had to anchor the sofa in the rear. I had to replace some of the hardware in the pantry doors so they would not open. I wish I could have installed the IS suspension at that time. I just could not make the trip to a location to get it done. Am I glad i replaced those axels?? YES! I now have greater peace of mind knowing I have a suspension that is properly fit for the weight. i have thus far had zero tire issues.
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Old 06-19-2019, 08:39 PM   #16
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Danny, in my case the tires begin to wear excessively. Especially on one side. I took it to the what was considered the best in the area. They have been in business for 60 years doing alignments on everything from 18 wheelers, Motorhomes and RV's. He was able to show me that the bend in the axel was off center toward the street side of the coach which was the side that was showing the excessive wear on the inside of the tires. He did try to replace the proper bend in the axels. But was unable to bring it to specs. So I opted to replace the axels with the 8K axels and springs. Also installed the CR3000 at that time. The results of going to the H rated 17.5 tires and axels is a much firmer if not rougher ride. I had to anchor the sofa in the rear. I had to replace some of the hardware in the pantry doors so they would not open. I wish I could have installed the IS suspension at that time. I just could not make the trip to a location to get it done. Am I glad i replaced those axels?? YES! I now have greater peace of mind knowing I have a suspension that is properly fit for the weight. i have thus far had zero tire issues.

This past March I went out to Morryde and had IS installed with disk brakes. 970 miles out , the two nights on the way out I had to close cabinets and put stuff back in the pantry . On the way home after having 8K IS installed not one cabinet opened and I was able to leave the toaster on the counter , it never moved! IS works better then the 7K buggy springs and equal flex trunnion that the trailer came with. On a side not I pulled into Morryde with a broken wet bolt and the rear spring hanger bent with the leaf spring riding on the frame. It would not have made the ride back home safely , the roads in spring where in bad shape especially in new York. New York got the award for worst roads heading east on I80 !

I stopped In Milton PA and scaled the rig , I had 13,900 sitting on the trailer tires hooked up and 17240 total trailer weight . You made a smart choice to get 8K running gear , if your still using the factory wet bolt and shackle link plates that are just under 1/4" think I would strong urge you to replace then with heavy duty OEM morryde parts.
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Old 06-20-2019, 09:10 PM   #17
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abnormal tire wear

Mark, Yessir i have changed all the undercarriage out. axels, wet bolts hangers etc. I installed the disc brakes before all of this started. So I have the undercarriage fixed now. Wish it was the IS system. NOW! if I could fix the absolutely stupidly designed AC system or should I say lack of a system I would be completely happy with a few exceptions..... Redwoods are not insulated regardless of what they advertise. And the air flow or lack there of does not make sense. I have done all that can be done to improve it. And it still will not work on the hot Southern La. days. That is another subject.... LOL
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