Air pressure/towing - Ford Powerstroke Diesel Forum
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post #1 of 10 Old 08-09-2014, 03:52 PM Thread Starter
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Air pressure/towing

What air pressure is everyone running while towing. I have 35 12.5 X 20 mud tires and towing 11000lbs. I got 18000 miles out of my last tire before breaking 2 belts. Not sure if it was pressure or just cheap tires. I was running 60psi. Thanks for any help.

2008 CC Lariat short bed
35x12.5x20 XD Hoss , Leveled
Sct tuned by IDP , Air bags


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post #2 of 10 Old 08-09-2014, 04:00 PM
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They're E load rating correct? I run 75 rear 65 front all the time.

-Kris

01 cclb f-350 srw-463hp/1025ftlbs PHP Dyno (extreme tune)
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post #3 of 10 Old 08-09-2014, 05:05 PM
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i run the max cold psi thats on the tire. since its hot here in south texas, i check/inflate them in the morning when its coolest

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.2002 f350 Lariat 4" lift w/ 35's. Hydra w/PHP. Swamps 175/146 injectors. gauges. banks power elbow, 4" dp 5"out,RiffRaffs FRX ww, ccv, AIH delete riff raff boost port, '10 tailgate mod amongst a bunch of other goods
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post #4 of 10 Old 08-09-2014, 06:47 PM Thread Starter
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Originally Posted by strokin-7.3 View Post
They're E load rating correct? I run 75 rear 65 front all the time.
Yes E rated. It seem everything I can find is what your running. Thanks everyone.

2008 CC Lariat short bed
35x12.5x20 XD Hoss , Leveled
Sct tuned by IDP , Air bags


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post #5 of 10 Old 08-17-2014, 05:50 PM
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I run 70 psi all the way around.

2006 F250 Lariat FX4 6.0 PSD
Performance: EGR delete, SCT tuned, 5" straight pipe, blue spring, 03' turbo
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post #6 of 10 Old 03-28-2015, 08:08 AM
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When towing I run max cold pressure all around as well.
And on the trailer as well...max'em out
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post #7 of 10 Old 03-28-2015, 08:34 AM
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Max cold psi for Me also
if not loaded/towing I revert back to the PSI i found using the
chalk test http://www.nitrogentiremachine.com/p..._inflation.htm

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post #8 of 10 Old 05-17-2015, 07:23 PM
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max llisted on tires for me when loaded...will drop'em down maybe 5 psi when unloaded on the truck...but trailer is always full cold PSI listed on tires...always maxem out.

SoloLucky, I love my diesel but it ain't for a poor man to own!

2004 CCLB, XLT, 6.0, auto, 4" MBRP full exhaust, 4" lift
1999 eXcAB, XLT, 5.4, auto, stacked, SCT tuner, 4" lift, fully modified as far as I can take it.
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post #9 of 10 Old 05-21-2015, 07:16 AM
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Quote:
Originally Posted by SOLOLUCKY View Post
max llisted on tires for me when loaded...will drop'em down maybe 5 psi when unloaded on the truck...but trailer is always full cold PSI listed on tires...always maxem out.

This. Max pressure, esp on trailer tires. Heat and flex kill tires, both are worse with less pressure.

96 F350 CCLB SRW, tymar intake, 4 in turbo back exhaust, banks intercooler, beans 6 pos chip, bronco 37 gal rear tank. Tows horses around KY.
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post #10 of 10 Old 08-07-2015, 12:43 PM
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that "chalk test" is prety cool ....i will be doiing that soon...determine the optimal "empty pressure for the truck.

SoloLucky, I love my diesel but it ain't for a poor man to own!

2004 CCLB, XLT, 6.0, auto, 4" MBRP full exhaust, 4" lift
1999 eXcAB, XLT, 5.4, auto, stacked, SCT tuner, 4" lift, fully modified as far as I can take it.
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