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Tire Pressure Preference Ford 2003 E350

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Old May 28, 2021 | 02:30 PM
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Tire Pressure Preference Ford 2003 E350

I have a 2003 E350, Bilstein shocks all around. Michelin LT tires. I had my tires inspected today for our upcoming 5-week cross-country camping road trip. We load up the van with lots of gear. 4 adults. Heavy load. I filled up the tires to 80 PSI on all 4 corners and will adjust accordingly. I see JWA fills his to 70 PSI 4 corners. Easier to lower the pressure on the road than topping off.

Any suggestions or experiences with running all 4 corners the same PSI? I may drop to 70 in the front if I start feeling every bump.
 
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Old May 28, 2021 | 03:38 PM
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I run all tires at 55psi and that works for me and my uses, so I don't see your case being any different.
 
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Old May 28, 2021 | 04:17 PM
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I usually run my work van at 60psi loaded. Do the 80 psi and adjust as needed and compare the pressures. My tires I had put on a couple months ago got filled to 80. I've left it there atm but it does feel a little squirrely from what I'm used to. It could just be a tire difference.
 
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Old May 28, 2021 | 09:15 PM
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Originally Posted by Spaznaut
I usually run my work van at 60psi loaded. Do the 80 psi and adjust as needed and compare the pressures. My tires I had put on a couple of months ago got filled to 80. I've left it there atm but it does feel a little squirrely from what I'm used to. It could just be a tire difference.
Thanks! Previously, I ran 80 rear and 55 front. I will probably drop to 65 front. I have never gone lower than 80 on the rear. Don't know why. These are heavy vans and we load our van. 4 batteries. Solar panels. Fridge/freezer. Camping and fishing gear. Probably not as heavy as a contractor loads up.
 
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Old May 29, 2021 | 05:37 AM
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Originally Posted by coolfeet
Thanks! Previously, I ran 80 rear and 55 front. I will probably drop to 65 front. I have never gone lower than 80 on the rear. Don't know why. These are heavy vans and we load our van. 4 batteries. Solar panels. Fridge/freezer. Camping and fishing gear. Probably not as heavy as a contractor loads up.
Next time you're all loaded to what you believe would be your max traveling weight visit a CAT scale and get the front & rear axle weights. When you're running "empty" or as a daily driver repeat that process. Comparing those might provide an idea what TP's to run in each condition.

FWIW my 2005 E-350 extended body with raised roof and upper "roll cage" weighed 6,200 lbs configured as a bare bones cargo van (front: 2,980 lbs & rear: 3,220). These days as a daily driver with all my tools, Snap On boxes, ladders etc etc its a whopping 8,460 (front: 3,380 lbs & rear: 5,080). Running on Michelin Agilis LTX 245/75-R16's I'm at 70 PSI all around. Since my weights rarely exceed the daily driver configuration I never alter the TP.

Keep in mind I'm also running Bilstein short wheel base motorhome E-Series chassis shocks, Hellwig short wheel base motorhome frt & Rr sway bars and have added an extra leaf in the rear springs.
 
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Old May 29, 2021 | 08:43 AM
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Originally Posted by JWA
Next time you're all loaded to what you believe would be your max traveling weight visit a CAT scale and get the front & rear axle weights. When you're running "empty" or as a daily driver repeat that process. Comparing those might provide an idea what TP's to run in each condition.

FWIW my 2005 E-350 extended body with raised roof and upper "roll cage" weighed 6,200 lbs configured as a bare bones cargo van (front: 2,980 lbs & rear: 3,220). These days as a daily driver with all my tools, Snap On boxes, ladders etc etc its a whopping 8,460 (front: 3,380 lbs & rear: 5,080). Running on Michelin Agilis LTX 245/75-R16's I'm at 70 PSI all around. Since my weights rarely exceed the daily driver configuration I never alter the TP.

Keep in mind I'm also running Bilstein short wheel base motorhome E-Series chassis shocks, Hellwig short wheel base motorhome frt & Rr sway bars and have added an extra leaf in the rear springs.
@JWA Is there a cost involved for take the van to the CAT scales? The difference between full and empty rarely changes as this van is not a daily driver. It's always "full". My tires are similar to what you are running. I have Bilstein (33-187563) 46mm Monotube Shock Absorber on the front and Bilstein (33-176840) 46mm Monotube Shock Absorber in the rear. (recommended for vans and short wheelbase Class C motorhomes). The front end felt stiffer driving home from America's Tires. Dropping to 70 PSI will make the ride softer. I have the Active Suspension installed in the rear.
 
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Old May 29, 2021 | 10:52 AM
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Originally Posted by coolfeet
Is there a cost involved for take the van to the CAT scales? .
Yes indeed and it runs from about $10 per visit to maybe as much as $15----have to check your local CAT scales.

Its just a good idea to weigh your van in both configurations as a "just because" thing. When those stat's are known it can make life much easier if you need suspension parts, service or perhaps a tow.
 
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