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Old 01-20-2018, 01:00 PM   #1
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Tag axle coach, new tires

Question: is there an optimal tire replacement schedule for a tag axle coach? i.e. Year 1; new steer tires
year 2 rotate 1 yr old steer to drive, 2 new tires to steers
year 3, rotate steers to drive, new steers.
year 4 rotate steers to drive, new steers
year 5 rotate steers to tag, new steers

any issues with mixed age tires on dually drive axle?

I know I'd be spending a lot of time in the tire shop. Not sure we can pony up $5k at once for new rubber all around, just trying to spread the pain.

Any ideas or am I way off base??
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Old 01-20-2018, 01:03 PM   #2
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Not with my rig as my steer and tag take 365/70's on 10" wide rims and my drive takes 315/80's on 9 1/2" rims.
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Old 01-20-2018, 01:07 PM   #3
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OOPs, same rubber all around, 295-80-r22.5
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Old 01-20-2018, 01:36 PM   #4
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You seem to be rotating 6 tires to the drive axle.


Year 1: new steer tires, put in storage
Year 2: new steer tires, take year 1 and year 2 to drive (3 years old)
Year 3; new steer tires, move to tag (1 year old, drive 4 years old)
Year 4: new steer tires, put in storage (tag 2 years old, drive 5 years old)
Year 5: new steer tires, take year four and 5 to drive (drive 1 year, 2 years old, tag 3 years)
Year 6: new steer tires, move to tag (tag 1 year, drive 2 and 3 years old)

Repeat and the oldest tire on the coach will be 5 year old.
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Old 01-21-2018, 08:18 AM   #5
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Why not just set aside 1/6 of the total cost of eight tires each year and replace them at 6 or 7 years. Unless you are putting on 10-12,000 miles per year, with proper care, they will be fine without rotating and a lot less hassle. I rotated the tags to the steers at 35,000 miles, but only because of unusual wear due to an alignment issue. The tag gets much less wear due to the lower weight on it.

edit: In the past, when buying tires for our service trucks, I have been able to negotiate a better deal when buying 6-8 tires as opposed to just a couple making replacing all at the same time less costly.
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Old 01-21-2018, 09:25 AM   #6
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Quote:
Originally Posted by Crasher View Post
...Why not just set aside 1/6 of the total cost of eight tires each year and replace them at 6 or 7 years. Unless you are putting on 10-12,000 miles per year, with proper care, they will be fine without rotating and a lot less hassle...
That's what I'd do. Your coach is going to be spending lots of time (and expense) getting the tires rotated.
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Old 01-21-2018, 09:43 AM   #7
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Agree with crasher, but if you don't have the financial fortitude to do save up in advance, simply replace axle-by-axle on a timeline you can manage. No real point in moving tires around each time - they still wear & age out.
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Old 01-21-2018, 10:52 AM   #8
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If you are going to wear out tires then rotating them makes sense. If you are going to age them out I would not bother. #1 rule is keep good/best tires on the steer axle. Put cheaper tires on the drive axle and worn tires on tag. Tires of equal wear should be side by side on the drive axle. Truck tires, even cheap ones will usually age out long before wearing out/failing on an RV. JMHO
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Old 01-21-2018, 11:04 AM   #9
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Scale your coach when it is fully loaded , then buy tires that have a bit extra weight carrying capacities..
If You have 2 tires are not "aged out" put them on the tag and just buy 6 new for now, then at a later date buy 2 new for the steers ans rotate the old steers to the tag.
Should be able to get 6 Toyo 144's for around $3k all in
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Old 01-21-2018, 02:19 PM   #10
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I know a few owners with Tag's that spread the costs out. But only in set's of 4 tires. They buy 4 new tires ~ every 3 1/2 years. Put two new ones on the Steers, and the other two on the Tag. Move the current Steers and Tag to the Drives. And yes, they do get charged for the move of the rubber to the Drives. But they look at is as a safety bonus, always have under 3 1/2 years old tires on the Steers, which they feel (And I agree.) are the most critical two tires on a coach.

They all, as I do too, have Centramatics(SP?), so balancing is not a cost factor. (I do however, do pay to have all my wheels also balanced, along with the Centramatics.

You might find that cycle will work for you too. Spreads the costs out, only the shop once every 3 1/2 years, and the extra safety of Steers always being under 3 1/2...

Best to you,
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