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Old 11-12-2011, 01:25 PM   #1
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Location: S Lake Tahoe
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Tire Pressure

I have the Toyo Open Country 225 75/16 Tires on the rig and they're definitely working well for me. Les Schwab has recommended several different tire pressures including 50 and 65 psi. I'm curious to know what tire pressures you're running?


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Old 11-12-2011, 03:41 PM   #2
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Location: Arcata, CA
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Re: Tire Pressure

I run my MT 315/75 16 E tires at about 62 psi but getting a bunch of numbers from us
won't do you as much good as checking the load and pressure limits on the side wall
of your tires and the weight of your van.

Les Schwab has pretty good prices, good products and good basic service but asking
for technical advice or some specialized service is playing Russian roulette. Some of
their people are competent and some are complete idiots.

2002 E350 7.3 PSD
Quigley 4x4, EB50 floorplan
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Old 11-12-2011, 04:15 PM   #3
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Tire Pressure

Never tried this before, but it strikes me as reasonable:

Paint a line across each tire. The paint should wear evenly across the tire indicating even tread wear.

If the center wears first, too much pressure. If the outside wears first, not enough.

For off-road use, you want a slight bulge.

Different loads (weights) will cause the pressures to achieve these pressures to vary.
Current: 2014 15 Passenger V8
Former: 2009 SMB 4x4 6.0
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Old 09-21-2012, 05:57 PM   #4
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Re: Tire Pressure

The Sprinter factory specs call for lower air pressure, 47 cold, in the front and 70 cold in the back. The front wheels are wearing as if the air pressure is too low. What are negative consequences of increasing the front wheel air pressure to equal the back tires?
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Old 09-24-2012, 06:06 PM   #5
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Re: Tire Pressure

57 front and 70 back.
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Old 09-24-2012, 09:14 PM   #6
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Re: Tire Pressure

10 ply "E" tires - 60psi Front / 80psi Rear
2003 Ford E-350SD 4x4
V10 / 4R100 / NV271
Front Axle - 1 Ton Spec Dana 60/King Pin/Open Knuckle/High Steer
Rear Axle - 1 Ton Spec Dana 60/Full Floating
Eaton E-Lockers Front And Rear/4:10 Gears
ARB Differential Covers - Nodular Iron With Dipstick And Drain Plug
Leaf Spring Suspension Front And Rear
46 Gal Transfer-Flow Fuel Tank
ExtremeAire Magnum Air Compressor
Reunel Rear Bumper
On And On ...
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Old 09-24-2012, 09:44 PM   #7
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Tire Pressure

Toyos - 55 front, 60-70 rear depending on load.

Currently vanless. Weird.
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