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Old 08-03-2015, 12:37 PM   #11
Join Date: Mar 2015
Location: North Idaho
Posts: 83
I thinks that's very interesting, all the differences in tire pressure for a 3/4 ton truck. Our tow vehicle is a 2004 Chevy Duramx diesel 4X4, crew cab, short bed. On the door sticker of our truck, the only sticker you're supposed to go by according to most things I've seen and read, it says if empty or fully loaded, 55 in the front and 80 in the back. Not towing I keep it still 55 up front but 65 in the back. I also have a set of the Firestone air bags in back for really heavy loads.

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Old 08-03-2015, 07:19 PM   #12
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Join Date: Feb 2012
Location: Midland, MI
Posts: 588
I was told by the service mgr at Ram dealership who also is an RV-er to run 80...the Max load for the tire. He said the placard value of 70 was based on a nominal level for hi load ride comfort and is also where the TPMS is calibrated.

I've run both and can actually feel an improved towing ride with 80 over 70 which is what I run now.

Cathy & Jeff
Midland, Michigan
2013 Sabre 32RCTS / 2012 Ram2500 Hemi
Nights Camped: 2015-140; 2016-137 YTD; 160 Planned
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Old 08-04-2015, 08:14 AM   #13
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Join Date: Jan 2015
Location: Kansas
Posts: 698
I guess I'll buck the trend here as far as responses. Granted I have a dually, but I run tire pressure per weight chart not by max pressure as stated on a sidewall. If I were to run max pressure as stated on sidewall, I'd wear the center tread off long before the tread towards the outer edge. I think door sticker is next best pressure if you don't go by a load chart. Bumping tire pressure up to max sidewall number is just guessing. If you think ride is too rough at manufacturer recommended pressure when unloaded ... drop it down 5 - 10 lbs.
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Old 08-04-2015, 09:31 AM   #14
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Join Date: Feb 2013
Posts: 130
Originally Posted by tedstr View Post
For jadatis. My TV has OEM tires, Goodyear Wrangler SR-A LT 265/70R18 Load E
My TV and RV are shown in my signature.
I would rather have you to collect the needed data for me , because I am not that familiar with American cars and towing things, so googling will end in wrong data from for instance a other year or model.

Tire data you gave are enaugh , but handy would be if you can find maximum speed on sidewall , probably N=max 140km/86m/h.

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pressure, tire

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