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Old 05-09-2010, 12:15 PM   #29
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1967 26' Overlander
Huntsville , Alabama
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I have just experienced another reason to run higher pressure in my new tires after doing stuff inside my Airstream. The camper is really squirrelly without stabilizers deployed. Since I had gotten used to stiff, bias ply tires, the "give" these new radials have at 35 psig is unsettling.

Part of the reason I worried about running the tires at max inflation pressure was it would make the ride too harsh. It does not appear that will be an issue.


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Old 05-09-2010, 12:47 PM   #30
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1990 34' Excella
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Originally Posted by Ahzmyrah View Post
I run ST 225/75R15 Load range "E" inflated to 65 lbs. on my 31' Excella. Just finished 12,000 miles around the western U.S.. Everything from sea level to 11,000 feet above and 20 degrees F. to the Death Valley below sea level and 116 degrees F., snow, wet, dry, hot, whatever. The tires now have over 25,000 miles on them and they are in great shape after three years with no failures what so ever. The E's are max rated at 80 psi but I don't run that much pressure because our trailer does not weigh that as much as the tires are rated for. We do not have a problem with rivet popping or stuff shaken out of the cabinets. We did have some problems in the past caused by a collapsed suspension and load range "D" tires would not have made it any better. We have had no problems since replacing the axles with new Henschens.
This is exactly what I am running; Carlisle ST 225/R15 Load range "E" inflated to 65 lbs. I do not have the miles that you have, but so far, I do not see any issues. I also have a new Henschen on my single axle.

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Old 05-09-2010, 05:40 PM   #31
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Originally Posted by TomW View Post
...The camper is really squirrelly without stabilizers deployed. ...
and if it is squirrelly parked in the yard,

imagine the handling while goin' 65...

i expected some1 2 offer this true statement as a counter to my lunacy...

"50 psi is NOT the recommended inflation pressure either, it's the MAX cold inflation limit" for C rated gyms...

and YES that's also a true/valid observation.

i've yet to find ANY tire manufacture that provides an inflation recommendation for any vehicle.

typically THAT is the domain of the vehicle maker.

gy does advise that those going 65-75mph ADD 10 psi (not to exceed the max)

which automatically mean 45 psi+, were I drivin'...

the owners manual says what ? 45 psi?

of course that PREdates radial tires OR dexter axles...

were u to buy C rated tires in j/c my guess is they'd send the trailer OUT with 50 psi...

another option is 2 inflate all 4 tires differently, for example 50, 40, 35, 30...

then run'em for a couple of years and report what happens...

the challenge being which tire goes where...

all of the true things that i am about to tell you are shameless lies. l.b.j.

we are here on earth to fart around. don't let anybody tell you any different. k.v.
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Old 05-25-2010, 07:38 AM   #32
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"Weighing" in on Tires.

Replaced Approx @15K miles.07 /Safari. The sidewall were bulging/seams were deep grooves.(made in Canada).Nxt day 5/8 lv for Moab-Lake Powell.Inspect tires @Every Stop.They ran Cool.At powell 2K miles new tires show same.seams and slight bulge.
To our luck we rtnd. to camp to find approx.30 units.had arrived, the American Southwest Caravan.Great Bunch of People !!! Got lots of feedback.
Also had tires inspected in Lake Powell & Kanab,Ut. The first Question they ask is "Weight" of trailer.They both also suggested 10 Ply.(Not GoodYear)Well i did not know Actual Wght. So somewhere down the Road i stopped @ Flying J. Very Helpful and i did not need a CB to talk to them they had a phone @ scale. Well i was a little suprised. The Gross truck/trailer was 11085 # the Trailer 4660#. It was 1/2 tnk. fresh,mt gry/blk. 1/2 the food,full clothing. To me this is Very Close (Too Close) to Limit.
Well we made it Home and Learned:
1. Get a Pressure Monitor System. A Must!!
2. Next tires 10 ply. Mich.? (Never Goodyears Again.)
3. Get torque wrench for wheel chk.
4. Weigh trailer /On trips that its Close to Full.
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Old 05-26-2010, 01:48 PM   #33
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Originally Posted by ZoominC6 View Post
We went to Carlisle "D" rated last year and so far, so good. Time will tell.
Good luck if you have a warranty issue...currently having one and it isn't fun.

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