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10-29-2017, 11:02 AM
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#1
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Senior Member
Join Date: Jan 2011
Location: Santa Clarita, CA
Posts: 929
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Odd tire wear on my steer tires
I have a 2005 Safari Panther with an "S" series tag axle chassis. I purchased it 4 years ago and have put around 26,000 mi on it since I purchased it. I replaced all 8 tires when I bought it with Michelin XZA2 Energy 295-80R22.5. I have had no issues with the front end, I have lubed it a couple of times, the king pins were checked and are tight, had a little looseness in the left wheel bearing which I tightened today. I noticed the other day that the left side tire is worn down to the wear bars on the inside of the tire with some wear across the face with the outside tread being the thickest. I also noticed that the right tire has plenty of tread across the face but the very inside edge is worn down. I have not had it aligned but it was aligned before I bought it. It doesn't look like camber or toe wear on either tire. I don't believe it is shocks because it is even wear rather than choppy wear. The right side tire may be due to "rivering" although that is usually a wavy wear pattern. I have a feeling that the there may be a misalignment problem with the rear axle although the rear tires are all wearing evenly. I can't believe that I have to replace 2 tires after only 26k miles. Has anyone run into this problem before? Any of you experienced chassis guys have any suggestions? Hope the pics come through. 
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10-29-2017, 12:13 PM
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#2
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Senior Member
Join Date: Aug 2012
Posts: 412
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See linked tire wear guide. Kinda looks like what's shown on page 112.
http://www.euroratas.lt/galery/_euro...ysis_guide.pdf
__________________
2023 Grand Design Trancend Xplor 240ML
2004 Phoenix Cruiser 2551
2014 Winnebago Vista 31KE
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10-29-2017, 12:55 PM
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#3
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Senior Member
Join Date: Jul 2012
Location: Fulltime, USA
Posts: 16,706
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I had the same tire wear. It was the toe in. Really! It worked
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10-29-2017, 01:20 PM
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#4
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Senior Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe according to the Rinpoche, of the SF monks.
Posts: 7,395
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Just how loose was that left bearing? It sort of looks like a combination of toe and possibly loose bearing.
How close are you to max load rate on that axel?
Happy Glamping.
__________________
Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand! 
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10-29-2017, 01:37 PM
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#5
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Senior Member
Join Date: May 2015
Location: Fayetteville, GA
Posts: 408
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I have the same size tires and kad the same edge wear pattern along with some cupping. I moved the tag tire to the front and front to the tag along with installing Koni shocks. Did a 5k mile trip out west and tire wear is perfectly flat. No outer edge wear or cupping and much better handling.
__________________
2013 HR 43DFT RR10R
All Electric FWS-Tag FMCA 451687
2017 Ford F150 4X4 Toad
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10-29-2017, 03:41 PM
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#6
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Senior Member
Join Date: Jan 2011
Location: Santa Clarita, CA
Posts: 929
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Quote:
Originally Posted by Unplanned
Just how loose was that left bearing? It sort of looks like a combination of toe and possibly loose bearing.
How close are you to max load rate on that axel?
Happy Glamping.
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The bearing was a little loose, enough that I could feel it with the tire off the ground. I didn't think about the loading of the axle, I had it weighed before but I will revisit it and see if I need to change the tag pressure.
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10-29-2017, 05:31 PM
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#7
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Senior Member
Join Date: Jan 2011
Location: Santa Clarita, CA
Posts: 929
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Quote:
Originally Posted by emcee
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This is exactly what I needed. Thank you so much. For those of you with a tag axle, have you weighed your coach and how much weight do you have on the front end? The last time I weighed mine I had 12,860lbs on the steer tires. What pressure are you running in your tag axle?
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10-29-2017, 06:17 PM
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#8
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Senior Member
Join Date: May 2015
Location: Fayetteville, GA
Posts: 408
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Quote:
Originally Posted by slemnah
This is exactly what I needed. Thank you so much. For those of you with a tag axle, have you weighed your coach and how much weight do you have on the front end? The last time I weighed mine I had 12,860lbs on the steer tires. What pressure are you running in your tag axle?
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I'm running about 12,500 on the front and about 42 psi on the tag. Keep in mind my 10 batteries are behind my tag, fuel is close to the front axle and all tanks are just in front of the drive axle.
__________________
2013 HR 43DFT RR10R
All Electric FWS-Tag FMCA 451687
2017 Ford F150 4X4 Toad
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