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Old 07-20-2011, 04:23 PM   #1
kingfisher24's Avatar
2005 28' International CCD
Join Date: Feb 2009
Posts: 981
New tires+PSI?

In April 2010 I replaced tires on my airstream and put on Gladiator ST225/75R-/15 10 ply tires....35, 000 towing miles later, today replaced the set with new ones.... this is every day, day in day out use. Old tires were worn evenly and most likely had another 4 or 5 thousand miles available, but it was convienient today at a lew schwab dealer in sutherlin, oregon to replace them. they recommend 75psi....i ran much less in the old set....

any thoughts
and the Four P's(Paula, Phoenix and Peabody II and Pearl)…Peabody is here…..
2013 GMC sierra denali
WBCCI 2541

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Old 07-21-2011, 10:51 AM   #2
Vintage Kin
Fort Worth , Texas
Join Date: Nov 2006
Posts: 8,014
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As a rule of thumb -- and assuming wheels are rated the same as the tires -- one can take a recommended size tire for that wheel (where tire tread width and wheel rim are a good match) and run it at full sidewall pressure.

Certainly, you don't have to. Ideally one wants tire pressure and load (scaled weight per wheel) to match according to tire manufacturer Load & Pressure Table.

The trailer manufacturer also would have recommendations.

Since you've made no changes in TV or TT you've your choice. 35k on a set sounds very good.

In other words, acquire these relevant numbers and compare them to your own. There is likely a range that will suit you (and weigh the rig to get axle-by-axle numbers sometime).

For peace of mind I also add CENTRAMATICS to mine. And axle alignment should be done.
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