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Old 03-14-2021, 04:05 AM   #201
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1988 34.5' Airstream 345
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Ahah. Not too bad. At least I have one that I was able to fix out of the two. There may be hopes to fix it if I can get the pyro-putty here in Canada but for now no luck.

Problem for a later day
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Old 03-14-2021, 08:20 AM   #202
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Oh!! I never thought that researching for what tore to get would lead me to now having absolutely no idea what tire to get

I have the 225/70r19.5 on there now and I think I will try and go back to the 8.00 x 19.5 at least for the back tires (go get more speed at less RPM) and spare but I am debating whether I should go with those for the front steering too or stick to the slightly wider and smaller 225/70?
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Old 03-14-2021, 08:38 AM   #203
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Quote:
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Oh!! I never thought that researching for what tore to get would lead me to now having absolutely no idea what tire to get

I have the 225/70r19.5 on there now and I think I will try and go back to the 8.00 x 19.5 at least for the back tires (go get more speed at less RPM) and spare but I am debating whether I should go with those for the front steering too or stick to the slightly wider and smaller 225/70?

you will get any answer you desire to be the right answer.
IMHO the GoodYear GLS647 RSS 8R19.5 are the best replacement, but the hardest to get very new tires and they are expensive ($400.-++) .
The Toyo M120Z 8R19.5 124L are ~$100 cheaper
The michelin 225/70 19.5 will fit the 19" rim, but are smaller.
Either way, I would stick with 1 brand on all axles,verify load and speed rating ans stay away from cheap tires
Its a safety investment
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Old 03-14-2021, 02:34 PM   #204
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Definitely get the same for all 4
I'm very happy with my cooper roadmaster 225/70r19.5s. Working great, easier to find replacements, and I think they look better
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Old 03-14-2021, 07:01 PM   #205
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Definitely not going with cheap tires! I was just wondering whether the advantage of the 225/70 18.5 on the steering axle was worth it.
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Old 03-14-2021, 10:21 PM   #206
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Definitely not going with cheap tires! I was just wondering whether the advantage of the 225/70 18.5 on the steering axle was worth it.
I really like the fatter aspect ratio, more rubber on the road, and the stance looks better.

I've looked at the two sizes side by side, and the difference would be notable. Might get away with bigger rears and a drag racing stance, but bigger fronts would look bass ackwards, IMO anyway.

The cooper roadmaster RM170+ were a little over $200/tire, ordered them on eBay, had a local place mount them without balancing for $20/tire, installed centramatics, been happy as a clam for the last 2500 miles

I got the M&S on the rears and the all-positions on the front, if you never ever leave dry pavement you could put the all positions all around

Not steering you away from any of the other good options available in both sizes, this was just what I settled on.
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Old 03-15-2021, 02:49 AM   #207
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I'm about to replace my R8x19.5 front steering tyers aswell, going to retain the hight to keep its nose up will go with the "crowned tyer" designed for light truck steering, I don't have any intention in running "drive tyers" on front as many do, it just puts unnecessary extra drag on our front end, like the drag links n ball joints ect get loaded !
I put 225/70 19.5 on the drive and tag axle,
In future i'll go back to 8R19.5 so long as I can find them. The vehicle would sit higher and parallel to the road, and with stronger side walls helps to handel better, especially with that 1ton 454 up front:}
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Old 03-15-2021, 08:52 AM   #208
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Thanks for all the advice! I have started making calls around and I am waiting for the calls to come in with the total $$$ and availability. I fear I know where my tax return will go!
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Old 03-15-2021, 09:02 AM   #209
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time/UV wear is something we can only gather from other people's experience.
picture of 5 year old Samson tires. There was 1 GY G647 RSS tire on my 8 tire set and it had a 2010 date with no cracking at all.

The tire store had zero interest in touching the 5 year old Samsung tires other than getting them off the rim. Check speed rating !!
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Old 03-15-2021, 12:00 PM   #210
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I got a few quotes. Goodyear 647 in 8.00r19.5 is only available early May and same price as the Michelin xze but the Michelinís are in 225/70r19.5 so the smaller aspect ratio.
They also quoted me some Triangle brand in the 8.00e19.5 but that is a Chinese brand.
Overall the Michelinís and Goodyear are about $388 CDN installed (that would be about $310 USD) and the Chinese tires about $220 USD each.
I prefer the taller Goodyear but mid may means I would need to drive a couple times on my current 10 y.o. Michelinís.
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Old 03-15-2021, 12:01 PM   #211
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My cracking is not as bad as yours but still. This is from the worst tire
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Old 03-15-2021, 12:15 PM   #212
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Quote:
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I got a few quotes. Goodyear 647 in 8.00r19.5 is only available early May and same price as the Michelin xze but the Michelinís are in 225/70r19.5 so the smaller aspect ratio.
They also quoted me some Triangle brand in the 8.00e19.5 but that is a Chinese brand.
Overall the Michelinís and Goodyear are about $388 CDN installed (that would be about $310 USD) and the Chinese tires about $220 USD each.
I prefer the taller Goodyear but mid may means I would need to drive a couple times on my current 10 y.o. Michelinís.

Good price, my GY's were closer to 450 ea, after all the extra fees and valve stems (some of which they didn't replace, but charge me for )etc etc
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Old 03-15-2021, 02:35 PM   #213
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I prefer the taller Goodyear but mid may means I would need to drive a couple times on my current 10 y.o. Michelin’s.
I assume you don't plan to drive on those?
Rv blowouts get hairy in a hurry. Even if the rig stays in control something else inevitably gets damaged.

Steer clear of triangle and doublecoin. You can get the coopers for the same price as the cheap chinese brands and way better quality.
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Old 03-16-2021, 07:37 AM   #214
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Alright! 9 new Goodyear 647s are ordered. I stuck to the 8.00R19.5 to gain the extra 5% speed. That 155rpm less will make a small difference in noise level with the 3-speed gearbox.

The only driving I will do on the current 10 years old tires is from the parking area to the shop and maybe a local campground, all on side roads at about 30-40mph so no heat will get in the tires.

We are not planning any trips until mid-June with potentially a long trip in August so having the new tires will feel much better!

Then as I was going down the ''tire rabbit hole'' I came across those ''centramatic balancers'' (thank Peter!) and now I am wondering if I need them...
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Old 03-17-2021, 11:46 AM   #215
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I can only find G647 as a ref, as I need to find suitable fronts. If above Goodyear tire is correct they are a narrow 225/70 19.5 = not the same as 8R 19.5 in running circumference as you wanted! Although they are a steer tires good for fronts for ease off steering and tracking but hopless fore rears, no lugs for grip and rears need to be atleast 245/70 19.5 a wider tire for grip on grass ect and not crowned like for fronts! They are designed fot light truck on paved roads only delivering bread!
If I have the wrong tire inf then discard the above. You also put an "s" in your tire description?
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Old 03-18-2021, 10:57 AM   #216
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Hi, sorry, these tiresClick image for larger version

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Old 03-19-2021, 08:44 AM   #217
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I'm on my 3rd set of these, and as long as Goodyear is making em, I will be using em!

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Old 03-19-2021, 10:36 AM   #218
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But they limit you to 75 mph with that speed rating
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Old 03-19-2021, 11:41 AM   #219
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70 works better for this old man!
Don't have any problem getting passed!
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Old 03-20-2021, 05:09 AM   #220
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Not sure I want to go above 75 with that thing anyway

The 454 would be revving quite high with that 3-speed gearbox!!
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