Inflating Spare Tire? - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 08-23-2012, 12:06 PM Thread Starter
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Inflating Spare Tire?

This may be a dumb question, but here goes anyway...

When you air up the spare (not on the truck), it obviously doesn't have a load on it, so would the inflation pressure be the same? It seems to me that the pressure would be different when it's off the truck vs installed and holding all that weight.

I'd hate to have to pull a good wheel/tire off, install the spare, inflate, and then swap them back out, but I want to make sure I have the correct pressure before my road trip. I don't plan on having onboard air or access to air where I'm gonna be (way up in the Rockies).
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post #2 of 2 Old 08-24-2012, 09:16 PM
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It is the same on or off the truck....

1991 Ranger - 38" TSL's, 3 link, One tons, 5.38s on King air shocks....under construction.
1997 Ranger - reg cab flare side, 3.0L, M5OD-R1, 4x4, 31x10.50r15 MT's.
2008 F350 - Crewcab short bed, 6.4L diesel, H&S XRT Pro, AFE DOC/DPF delete
1972 Mustang Coupe - 302, c4, 9", 4.11's locked.
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