funpro

Danville, CA

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Ford F250 and 27' fifth wheel. 1. Should I add air pressure before attaching my fifth wheel? or after it is attached? How do you know the best PSI to use?
When the 5th wheel is not attached I run at about 12lbs PSI.
The air helper springs are Firestones
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donn0128

Pronounced Ore-gun

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Hitch the loaded trailer up and inflate the air bags to just bring the truck back to level. That is if you actually need to.
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AZ T&T

Mesa, AZ

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I think everyone is different. I add the air before hooking up up. I run at 45 psi and I came to that number by just trying different numbers until I zeroed in on what felt best to me.
AZ T&T
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dubdub07

Colorado Springs

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I don't air up before because it makes the hitch about 4 inches higher. I don't care if the truck is level, just the ride. I would experiment between 25-40 for your FW....for us it keeps the truck bed from bouncing a lot on rougher roads.... When I had 40 psi in them, it sure was rough. Now I run about 27psi. That is 20 pumps a side with the bike pump. Just enough to keep the weight off the overloads and give a little spring but keeps the load nice and steady. When we stop, I let the air out before I disconnect. Brings the truck down lower so the landing gear doesn't have as far to go!
2012 Montana High Country 333DB
*NEW* 2012 Dodge 3500MEGA 6.7 CTD, 2012 Jeep JK Rubicon, 2012 Durango Citadel, 2010 Harley Heritage Softail....American STEEL = American profits.
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funpro

Danville, CA

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Great and helpful answers I really appreciate! Thanks.
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tjar66

Camarillo CA

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I air up after hitched and have experimented with different amounts of air and find 25#-35# works best. I also only pump up enough to keep off the overloads.
2006 Dodge Ram 3500 Cummins
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wandering1

Texas

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If your owners manual doesnt tell you how to use it then contact the manufacturer and ask.
HR
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ford truck guy

Pennsylvania

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I used to air up before hooking up.. now I know what number to run at and do it before ,,,Joe
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tartan camper

Canandaigua, New York

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I keep mine at 30lbs. I like the feel at that pressure.
Backpack to fiver...and everything in between. What a life!
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SuperDutyMan

Western PA.

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ford truck guy wrote: I used to air up before hooking up.. now I know what number to run at and do it before ,,,Joe X2,35psi
2011 Palomino Sabre 31RETS,5th Wheel,Triple Slide,4000W Onan Genset
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