John
I do it your way and it was worked well for me for the last 39 years that I have owned the GMC.
Emery Stora
>
> Is there an advantage to doing as you suggested rather than just replace
> the fronts and move everything back a position?
>
> On Sat, Oct 17, 2020 at 9:12 AM Larry via Gmclist
>
>> This is a repost of something I wrote last December. Might be worth
>> repeating.
>>
>> I have put the coach on a 6 yr replacement plan. 2 tires every two years.
>> Seems the front tires wear the fastest. Then it seems the mid axle wears
>> next. and the rear axle is just along for the ride and wear the least.
>> When the front wear to a point where traction may be compromised or reach 4
>> yrs
>> old, I move them to mid axle. Mid axle rims get new tires and moved to the
>> rear. Rear tires get moved to the front. Do this every two years, so I'm
>> only laying out money for two at a time every two years. We also put on
>> about 10 - 14 k miles every year. So by the time replace two 6yr old tires,
>> they have between 30-42K miles on them. They have now timed out with as
>> many miles as I can get out of them and still safely run them. This way,
>> oldest tires are 6yrs, followed by 4 yrs and 2yrs. I've actually got one
>> wheel...the passenger side mid axle that is slightly toed in and wears
>> faster
>> than all of the others. But it has become not worth the effort to correct
>> the slight toe problem on that wheel, because the tire there times out
>> before it is worn below the wear bars. This all works for me running
>> Michelin Defender LTX-MS tires. If the coach will stand still for more than
>> a
>> couple of weeks, I tire cover them as I do not have inside storage.
>>
>> The hard part is getting into that replacement management scheme. You may
>> have to replace a set a year or two earlier or later to get the rotation
>> right. I was able to do it when I bought an off-brand set of tires that
>> tread separated. Two of them at two years use and another two at 4 years.
>> Just
>> worked out for me. The problem with off-brand tires is that they were
>> regionally available, so when they went bad while traveling south, I was not
>> able to get to a shop that carried the brand to make the adjustment. The
>> one time I could get to a shop that carried them, it was far enough out of
>> the way that it would have cost me more in gas to get there than the cost
>> of the replacement tire. JMHO, but now I use only Michelin LTXMS, and have
>> never had a problem with them. To me, the peace of mind is worth the extra
>> money for the Brand Name.
>>
>> I also take the best of the two 6 yr old tires and move it to the spare.
>> Requires having same size rim on spare as the other 6 on the coach. That way
>> the spare is never more than 8 yrs old.
>>
>> FWIW, some time when you have time, take your GMCMH to a empty part of a
>> parking lot. Stop somewhere out of the way. Then, turning the steering
>> wheel,
>> crank the wheel all of the way either left or right. Put coach in gear and
>> go forward 1/4 to 1/2 of a circle. Stop, put it in park and get out and
>> look at the 4 rear wheel/tires. It is shocking how much those bogie arms
>> and tires bend/squirm to accommodate a turn. / | \ Front tires don't
>> react
>> nearly as extreme as rears. So, every time you turn a corner, you are
>> really working those sidewalls. IMO, with that kind of squirm, this is why
>> most
>> blow-outs occur on the rear as those sidewalls are consistantly being
>> bent/streatched to their limits. So, I think we need to be running a well
>> made/engineered tire that is capable of handling this abuse. When I park
>> my coach for the night or for that matter, any period of time, if I had just
>> turned the wheel a little, I will point the wheels straight forward, then
>> pull forward and back 2-3 times just to take the bend/squirm out of the
>> tires. Just what I do. (JWID)
>>
>> Hope this helps.
>> --
>> Larry
>> 78 Royale w/500 Caddy
>> Menomonie, WI.
>>
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>
>
> --
>
> *John Phillips*
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