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2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine
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Old 03-11-2012, 04:00 PM
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Tire pressure?

This seems like a silly question to ask, but I am a little confused on what my tire pressure should be at considering I have larger tires. The sticker on the door panel says I should be at 35 psi cold and the tire just says to refer to that, but says something about 40 psi max. My PSI for all my tires is about 42-43 psi and they haven't been adjusted since the tires were put on in June last year by a local shop, so I just assumed they got the PSI correct. So what should my PSI be at for all four tires? Thanks!
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Old 03-11-2012, 04:33 PM
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your fine at 43. I am running mine at 40psi. If you wanted a little softer ride you could go down to the 38 range or so.
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Old 03-11-2012, 07:22 PM
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Mine are at 45 lbs, but I have 10 ply tires. Your main concern should be full contact of your your tire to the road. Try putting some paint across the tread and drive, slowly, one or two rotations. Look at the paint on the road. Thin paint on the sides, too much pressure. Thin paint in the center, too little pressure
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Old 03-11-2012, 11:02 PM
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You should test your tire PSI often. The PSI will vary with the air temp and road temperatures. Also if you make long hauls. The tire will heat up if under inflated and possibly damage the plies. Stay below the load rating and PSI maximum rating on your tires.
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Old 03-12-2012, 10:46 AM
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Thanks for the input guys.
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• 33" Toyo M/T • 20" XD Monsters • 2.5" Rough Country Level
• Gryphon CS /w custom 87 tune • Flowmaster SIDO exhaust • Pioneer Head Unit
• Trex Vertical Billet Grille • Chrome accents • LED dome and cab lights • Tonneau cover • 15% tint
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Old 04-16-2014, 03:51 PM
Shawn conard Shawn conard is offline
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I have a 90 ford f250 4x4 with dana 60 axle swap and i have bf Goodrich all terrain ko 295 75 16 just a daily driver no towing nothing. What air pressure should I use for an even wear?
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Old 04-16-2014, 03:51 PM
 
 
 
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