Home » Public Forums » GMCnet » [GMCnet] Tires
| [GMCnet] Tires [message #19394] |
Thu, 21 August 2008 18:49  |
David L Greenberg
Messages: 899
Registered: January 2004
Location: Port St Lucie, FL
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On Thu, 21 Aug 2008 13:03:41 -0700 "Gary Bovee" Can anybody recommend a
brand of tires
> that they
> have used and would suggest a fellow GMCer should buy to put on
> their coach?
>
> Thanks,
>
> Gary Bovee
> Red Bluff, CA
> 78 Royale
>
You will probably get as many varied replies as there are tire makers but
that is good. I had good experience with Bridgestone tires and when they
became too costly I went with Cooper SRM IIs which were in the hundred
dollar range and also excellent.
I have had the other major brands in the 70's when there were lots of
problems with the then new radial when installed on GMCss.
The prevailing opinion is to go with ragwall vs steel and load range D vs
E but that is your own choice. Try to avoid larger tires.
David Lee Greenberg (In Bisbee, Arizona)
Port St Lucie, FL
Dedicated to the Preservation of the Classic GMC Motorhome
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| Re: [GMCnet] Tires [message #65346 is a reply to message #19394] |
Sun, 22 November 2009 21:58  |
GeorgeRud
Messages: 1380
Registered: February 2007
Location: Chicago, IL
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I had always heard that 16.5 was fairly common for pickup trucks back in the 60's.
George Rudawsky
Chicago, IL
75 Palm Beach
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| Re: [GMCnet] Tires [message #65351 is a reply to message #65333] |
Sun, 22 November 2009 22:23 |
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What I heard was that 16.5's were introduced for tubeless tires and the
extra 1/2 inch was so that
people would not try to mount 16" tubeless tires on 16" split rims.
Roger P. Gleason wrote:
> I always thought it was an effort to control the market by being unique.
>
>
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Terry Taylor
'74 ex-Eleganza SE
San Lorenzo, CA
http://www.n6mon.org
http://dldesignstore.com
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| Re: [GMCnet] Tires [message #65355 is a reply to message #19394] |
Mon, 23 November 2009 00:13 |
zhagrieb
Messages: 676
Registered: August 2009
Location: Portland Oregon
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I'm happy with Coopers. I went with the E range.
Glenn Giere
Glenn Giere, Portland OR, K7GAG
'73 "Moby the Motorhome" 26'
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| Re: [GMCnet] Tires [message #65540 is a reply to message #65331] |
Tue, 24 November 2009 13:54 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
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""It could have had something to do that the coach was built by the Truck &
Coach Division. I don't think GM provided much oversight on GM T & C.""
It wasn't so much an issue of oversight as it was familiarity with the component set that each group was familiar with. At that time, even the car divisions were separate and stand alone entities when it came to engineering and manufacturing.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Tires [message #65651 is a reply to message #19394] |
Wed, 25 November 2009 14:50 |
Rick Denney
Messages: 430
Registered: January 2004
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Two folks have sent me emails privately with information. One reminded
me of a post Emery Stora made several years ago, referencing a
Goodyear datasheet that was available then but not now. Those two
messages described the diameter (which is not the same thing as the
rolling diameter) as 28.9, 29.3, and 30.7", respectively, for 8.75,
225, and 245 tires.
It is interesting to note that the 8.75" Goodyear tire had a smaller
rolling diameter than the 225 tire, and much smaller than its nominal
size rating. The 245 tire was significantly larger than its nominal
size (by a quarter inch in diameter), while the 225 was right on its
nominal size. So much for my hope of making reasonable comparisons
based on nominal sizes. That tells me that any discussion of these
will vary by tire manufacturer to the point where the differences
between the OEM and the 225 are really clouded, unless one considers
specific tires. In that case, a tape measure might be the preferred
tool for evaluating the difference, as long as the tires are inflated
to the same pressure and loaded the same way.
If we go with Goodyear's revolutions per mile specification from the
data I was sent (which is based on rolling diameter and not ono the
diameters reported above), we have:
8.75: 719
225: 703
245: 671
With that, the speedo will read 2.2% slower for the 225 tire than the
8.75" tire, and the 245 will be nearly 5% slower than the 225. If I
put 245's on my coach, maybe the speedo would be almost accurate, heh,
heh.
I used 225's because I didn't see much value in a larger tire--we
don't need the extra load handling, nor do we want a taller gear
ratio.
Rick "thinking it's time for 16.5" users to start saving up" Denney
'73 230 Ex-Glacier "Jaws"
Northern Virginia
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| Re: [GMCnet] Tires [message #66595 is a reply to message #19394] |
Fri, 04 December 2009 04:30 |
David L Greenberg
Messages: 899
Registered: January 2004
Location: Port St Lucie, FL
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On Thu, 03 Dec 2009 21:13:26 -0600 Randy <Acrosport2@hotmail.com> writes:
>
>
> When you buy tires off the internet, do you pay tax and what is the
> average installation price?
>
No tax (if the seller is not a corporate entity in your state)-no
disposal fee but you do pay transport fees which are close to state tax)
> Are fresh tires that are cheaper better for coaches that don't get
> alot of miles, or are the cheaper tires a risk not worth taking? In
> short are you better off with a set of Hirohito 1000's that you
> change every 4-5 years than a set of Michelins that you try to
> stretch to 8-9 years?
>
Randy, I always bought the best affordable tires and replaced them at 5
years if they didn't wear out before that.
In my opinion tires are a safety item that I wouldn't skimp on. Do your
research and you'll find a good price for a good tire. The last set I
bought were Cooper SMR IIs designed for RV use, paying $100 apiece. I had
good wear and not a single problem in 40k miles. They replaced the
Bridgestones I had been using for years but had gotten too expensive.
I put Kumhos on the ASC McLaren I had to replace the 18 years old OEM
issue and was very impressed with them but didn't keep the car very long
afterward. I might consider a Korean tire but would look at user reviews
1st before I bought anything.
David Lee Greenberg
Port St Lucie, FL
Dedicated to the Preservation of the Classic GMC Motorhome
http://GMCmhRegistry.com
48 Packard Super Eight http://www.picturetrail.com/gmcregistry
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http:GMCmhRegistry.com
davegreenberg1@juno.com
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| Re: [GMCnet] Tires [message #66620 is a reply to message #19394] |
Fri, 04 December 2009 10:17 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Randy,
I have to agree with Steve when it comes to purchasing tires for the
coach. I am not trying to start a "TIRE WAR!" here on the GMC net
which we have done several times the past few years. On the 77 coach
I run the BFG Commercial T/A (225 75R 16 LRE) tire on all wheels and
they ride great and are bead balanced. These are a all ragwall tire
and are 65# in all tires. The 75 coaches tires are Goodyear G149 (225
75R 16 LRE) all steel tires on the rear set at 60# and Goodyear
Wrangler HT's (225 75R 16 LRE) set at 65# and they are a ragwall
tire. You will notice that the fronts on both coach are a ragwall
tire. General consensus although not agreed by all is that the
ragwall tire will improve your drive and ride down the road. I have
driven with all steel tires, all ragwall tires and steel on the back
and ragwall on the front. The all steel was the worst ride of the
three.
As for tire pressures you will hear all different ranges used by
GMCers. Some swear by running the manufactures rating on the tires
and on the LRE tire that most always is 80 PSIG and it rides like a
truck. You can also have the coach weighed and set the pressure by
the weight or you can run what someone else runs. I have run as low
as 55# on the old Goodyear G159 in the past but today I run 60 or 65#
on the rear depending on the tire and 65# on the front and that is my
personal choice and yours may vary.
As for how long to run the tire, the run of thumb today is 5 to 7
years depending on tire make. I had a fellow GMCer who also worked
for Goodyear tire say that you could run the old G159 for 10 years
with problems because of the additives that they used in the rubber
and some who run Michelins for 7 or 8 years for the same reason.
Today the tire companies do not use the same formulation of rubber
that they used in the past that protects the rubber (primarily UV
protection). And what is really scary is the number of Brand Name
tires that you would think that are US made are really made in China.
My tire supplier told me this when I bought a set of tires for the
tracker. That is why the 30% tariff on tires has raise almost all
tire prices.
Not going to tell you which tire range and brand you should buy. Go
out there and make your best deal. Just remember that the cost to fix
body and running gear damage is considerably more that the small
difference between D & E rating cost.
I will get off my soap box now.
J.R. Wright
GMC GreatLaker
TZE Zone Restorations
77 Eleganza Custom (For Sale)
1975 Avion (Under Reconstruction)
Michigan
> Randy,
> After all is said and done, cussed and discussed, the bottom line is
> for you to find a load rated E tire of the correct size and
> construction, inflate them to the Mfr's specs, keep them covered when
> not in use, and replace them when worn, or at the 5-6 year mark.
> Anything other than that and you will have your decision on your mind
> everytime you and yours are out for an outing.
>
> :
>>
>> When you buy tires off the internet, do you pay tax and what is the
>> average installation price?
>>
>> Are fresh tires that are cheaper better for coaches that don't get
>> alot of miles, or are the cheaper tires a risk not worth taking? In
>> short are you better off with a set of Hirohito 1000's that you
>> change every 4-5 years than a set of Michelins that you try to
>> stretch to 8-9 years?
>>
>>
>> --
>> Randy
>> 1973 26' Painted Desert
>> Ahwatukee (Phoenix) AZ
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Tires [message #66625 is a reply to message #19394] |
Fri, 04 December 2009 16:32 |
peter bailey
Messages: 367
Registered: March 2009
Location: Gawler, South Australia
Karma: 0
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Rob,
You know there is no 'i' in the word tyres
Peter Bailey
----- Original Message -----
From: "Rob Mueller" <robmueller@iinet.net.au>
To: <gmclist@temp.gmcnet.org>
Sent: Saturday, December 05, 2009 8:51 AM
Subject: Re: [GMCnet] Tires
Jim,
BTW a mate of mine is the importer of Nexen tires here in Australia, guess
what kind of sneakers are on The Blue Streak!
Regards,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Jim Bounds
Sent: Saturday, 5 December 2009 1:00 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Tires
Something I did so far only once but in trying to help those that were
wanting to get accuratly trued and balanced new 16" rims and tires-- I
picked up the Nexen tires here, Jim K. sent me the set of Eagle rims, I
loaded the tires actually on a coach, warmed them up then trued and balanced
them and shipped them to the customer laced up and ready to go. The
shipping had to go truck freight which added to the total cost a bit but the
whole rim/tire assembly was in perfect balance and trued. It was a bit of a
hassle, probably not worth all it took to do it for me but it did offer
truing and balancing to a guy that just could not drive down here to get it
done.
If you would really like to get a jam up set of sneakers for your coach,
this is a way to do it. The $ you save in the rims and the tires gives you
the opportunity to have the new 16" set up still cheaper than buying Alcoa
rims with Michelin tires without the benifit of what I feel is the best way
to set up tires and rims.
Just a thought for those who care, call me if you are interested,
Jim Bounds
------------------------------
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| Re: [GMCnet] Tires [message #87888 is a reply to message #19394] |
Wed, 09 June 2010 22:13 |
chucklexie
Messages: 44
Registered: June 2010
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O.K. Newby here!!! What is this reaction arm thingie???
Regards,
Chuck Ellis
---------- Original Message ----------
From: Jim Kanomata <jimkanomata@gmail.com>
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Tires
Date: Wed, 9 Jun 2010 19:41:31 -0700
We had a customer from Indiana come in few days ago with a complaint
about a thump.
Yup, he did a rapid stop on the freeway and skidded his rear back wheels.
We took the two wheels down to have them trued. When it came back,
there was not all that much tread left.
My mechanics told him about the Reaction Arm system and how that would
have avoided the flat surface plus stopped sooner.
On Wed, Jun 9, 2010 at 7:24 PM, roy keen <roynpaula@charter.net> wrote:
>
>
> Got the new Costco coupon book today it had the $70 off on tires but it only mentioned Michelin I hope they aren't dropping the discount on Goodrich tires.
> Roy
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Tires [message #87898 is a reply to message #87888] |
Wed, 09 June 2010 23:01 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Oh, boy. You need to log on to the forum and read some of the threads on the reaction arm. It's expensive, but brilliant. You'll need 6 disk brakes and the reaction arm kit about $4k in parts.
It is a device that makes the back brakes stop the coach instead of lift the coach. Jim K has them on his website <http://appliedgmc.com/prod.itml/icOid/697>
You can see video of this system in action here <http://appliedgmc.com/level.itml/icOid/973>
Larry Davick
The Mystery Machine
On Jun 9, 2010, at 8:13 PM, chucklexie@juno.com wrote:
> O.K. Newby here!!! What is this reaction arm thingie???
> Regards,
>
> Chuck Ellis
>
> ---------- Original Message ----------
> From: Jim Kanomata <jimkanomata@gmail.com>
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Tires
> Date: Wed, 9 Jun 2010 19:41:31 -0700
>
> We had a customer from Indiana come in few days ago with a complaint
> about a thump.
> Yup, he did a rapid stop on the freeway and skidded his rear back wheels.
> We took the two wheels down to have them trued. When it came back,
> there was not all that much tread left.
> My mechanics told him about the Reaction Arm system and how that would
> have avoided the flat surface plus stopped sooner.
>
> On Wed, Jun 9, 2010 at 7:24 PM, roy keen <roynpaula@charter.net> wrote:
>>
>>
>> Got the new Costco coupon book today it had the $70 off on tires but it only mentioned Michelin I hope they aren't dropping the discount on Goodrich tires.
>> Roy
>> _______________________________________________
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>>
>
>
>
> --
> Jim Kanomata
> Applied/GMC, Fremont,CA
> jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
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>
>
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Tires [message #87972 is a reply to message #87897] |
Thu, 10 June 2010 17:47 |
jhb1
Messages: 303
Registered: February 2004
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Hi Larry
Last year I switched out my 12 year old Bridgestone Vsteel tires for the Firestone's and noticed that the Firestones were much smoother. Just installed a set of body pads and this has got to be the best improvement to the ride yet.
P.S. I logged 45000 miles on the Bridgestones and about 3500 on the Firestones so far 500 of which are with the new body pads
John H. Bell
77 Royale; QuadBag,Manny OneTon,Honda EV4010, FITech
Montreal Qc.
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