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Old 04-10-2010, 11:32 AM   #1
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1984 34.5' Airstream 345
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Need new tires.. Prices and Sources?

Looking at the DOT dates on the tires on my newly purchased 345, looks like I am gonna need at least 4 new ones. I think they are 8x 19.5.
Where is the best place to get tires, and what do they cost?
Any advice on Manufacturers or models?
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Old 04-10-2010, 12:02 PM   #2
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Can't ever go wrong with Michelin and I personally like Bridgestone. Basically, you need a tire dealer that deals with at least medium trucks -- you need somebody with herky enough equipment to mount and balance the tires.

As for cost, well, the 18" Bridgestones on my half-ton were jsut under a grand all said and done (supressed sound of weeping). I'm guessing you are going to be in for half that again...

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Old 04-10-2010, 01:56 PM   #3
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Ok, thanks.
Anyone done the conversion from the 8R19.5 to 225/70 R19.5?
Like here...
On The Wings of Goodyear | RV Tires - Related Info - Size Conversion
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Old 04-10-2010, 07:29 PM   #4
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I am going to the 225 70R 19.5 Michelin XZE for the fronts and the drive axle, will have to stay with the 8R 19.5 for the Tag Axle. I don't have enough clearance between the tire and the inner fender for the 225 70R 19.5 for the Tag Axle. Spoke with a RV Mechanic/Tire dealer he believed this will not cause an issue with the greater diameter of the tag tires (1" larger diameter or 1/2" from center of wheel to ground). If any issues come up the Air Bags can be adjusted on the Drive Axle to compensate.
The Michelin are 8.9" wide instead of 8.6".
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Old 04-11-2010, 03:40 PM   #5
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1984 34.5' Airstream 345
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Good info, thanks.

I have to drive my "new" 345 from near Dodge City KS, to my home in California, some 1300 miles next week.
The tires are a mixture of dates, youngest are 2008 and the oldest I think are from 2000. All "look good" with no noticable cracking.
I am planning to buy a tire pressure monitor, and fit it before I start off, but am unsure if I should just go get the oldest ones replaced, or watch the monitor and go slow and steady!
Advice?
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Old 04-11-2010, 08:31 PM   #6
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Thumbs up Need New Tires

Keyair I would find a source for tires before you start, as they will probably be less expensive there than in CA. I am replacing 2 front tires on my 310 and I got the best prices on Sumitomo and some Chinese made tire which I took a pass on. Sumitomo used to own Dunlop years ago and they build a good tire. Michelin and Toyo are good brands too. I would recommend that you get the Good Sam Road Service before you make the trip, just in case.
Mike
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Old 04-19-2010, 11:58 AM   #7
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I contacted the local RV place there, and they gave me the number of the Tire place they use...
I put in a call to them and after a lengthy chat with the tire Tech there I ordered 6 x 225/70 R19.5 Dynatrac tires to be waiting for me there. He says that they carry all the big makes, but have found that the Dynatracs are great value, at half the price of Goodyears and last as well.
He said they are better than the Samson brand tires, that were cheaper. Considering that it seems that tires are replaced more often by date than wear, I feel that would make good sense.
Planning to put them on the front and drive axles and swap the best 2 onto the Tag.
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Old 04-20-2010, 11:01 AM   #8
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Originally Posted by Keyair View Post
I contacted the local RV place there, and they gave me the number of the Tire place they use...
I put in a call to them and after a lengthy chat with the tire Tech there I ordered 6 x 225/70 R19.5 Dynatrac tires to be waiting for me there. He says that they carry all the big makes, but have found that the Dynatracs are great value, at half the price of Goodyears and last as well.
He said they are better than the Samson brand tires, that were cheaper. Considering that it seems that tires are replaced more often by date than wear, I feel that would make good sense.
Planning to put them on the front and drive axles and swap the best 2 onto the Tag.
I may be wrong but I thought I have seen a post that indicates the 225/70 tires are two wide for use as dualies. It might be worth searching the archives to verify this. What you don't want to have happen is for the dualies to rub against each other. I bought a pickup one time that had the wrong size tires on it and the noise from rubbing was spooky plus the danger if they blow.

One other thing to be aware of with cheaper tires (possibly expensive ones as well) is to make sure they are round. Yeah I know it sounds strange but we bought a set of Chinese tires that were so out of round the coach vibrated horribly. We ended up having them checked at an independent service shop where they spin tested them. Bottom line is we ended up getting a refund from the original tire seller and bought Toyo (Koyo?, can't remember which!) tires and have been happy ever since.

YMMV,

Brad
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Old 04-20-2010, 11:12 AM   #9
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Check Tire Rack, over night shipping, great prices, highly trained staff, local certified installers. I've been using them for around 9 years, a really good company!
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Old 04-20-2010, 08:49 PM   #10
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I'd also have to say Tire Rack , great service ,huge product line.
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Old 04-22-2010, 12:50 AM   #11
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Update!
I picked up the MH this morning and took it straight to Great Western Tire in Dodge City, KS.
A set of 6 225/70 R19.5 tires were there as I requested.
A look at the tires in detail revealed the front pair were Dated 33-08, the dually axle set was matching at 11-04 and the tags were from 2000... With the concerns that you guys voiced, Chris from Great Western suggested we put the new 225's on the front and put the 08's from the front on the Tag... one of the Tags was bette than the spare, so that was swapped. On the20 mile drive to dodge City, I noticed some front vibration, so he rebalanced the fronts before remounting them.
I went shopping, and 90 mins later it was all ready to go!
I am sitting typing this 250 miles from Dodge with everything reported good so far!
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Old 04-22-2010, 02:17 PM   #12
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I'm glad you are having a good trip home.
We have had the Goodyear G670 225/70R 19.5's on our 345 for 5 years, and we love them. There is very little clearance between the inside tire wall and the inner fender area on the tags, but this has never been a problem. There is no clearance problem between the duals.
We have one of the tire pressure monitor systems on all the road tires. This is the only way to go. You can check your tire pressures at any time.
BTW we just replaced our three steel wheels. Both the inner duals and the spare are steel. All the exposed wheels on our 345 are the Alcoa aluminum wheels. We replaced the steel wheels due to a crack in a weld on one wheel. Since these are 24 years old, time to get them off.
Rob
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Old 04-27-2010, 12:48 PM   #13
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Thanks Rob!
Welll, 1406 miles under our belt and home safe.
I do seem to have a vibration from the rear end somewhere, at between 50 and 70mph, so I will be replacing the drive tires at some point soon to see if it goes away.
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Old 04-30-2010, 09:44 AM   #14
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Thanks Rob!
Welll, 1406 miles under our belt and home safe.
I do seem to have a vibration from the rear end somewhere, at between 50 and 70mph, so I will be replacing the drive tires at some point soon to see if it goes away.
We have a vibration harmonoic that I'm fairly certain is from the driveshaft. So if tires don't fix it the next thing to look for would be the driveshaft & u-joints.

Plans are to pull it and have the u-joints replace and the driveshaft balanced. Its been on my list for a while, just can't seem to get to it.

Brad
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