4x4 ??
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4x4 ??
i have a f350 long bed 4x4 and tow 5th wheel.i was woundering if i need to use 4x4 when towing does it help any?cause i never use 4x4 when i tow.and my tires say 80 psi. is that how much air i need to leave when i tow? 
Last edited by low 350; Sep 13, 2004 at 02:11 PM.
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From: Broken Arrow, OK.
Be sure to have your rear wheels inflated to 80 pounds when towing. Make sure that you check them when you not driven the vehicle such as in the morning when it's cooler outside. Whatever you do don't tow on pavement with your 4 wheel drive on, as posted above it will tear up your front end. 
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The 80lbs on the tire is the maximum the tire can be inflated to. It is not what the pressure should be. That is on the door sticker. When towing you can add a few lbs to the number on the door, but to run the maximum pressurewill just give you a lousy ride and wear out the tires quicker.
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Joined: Mar 2001
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From: So Cal
Air pressure is usually different for Tow or NoTow. Check the manual and or the door sticker.
My 94 F250 4x4 says to run with something like 50F/60R not towing and with something like 90F/90R towing. Naturally do not exceed the tire max rating in anycase. My current tires are rated 80PSI so when I tow my 8,000# trailer I go 80F/80R. (BTW F=Front, R=Rear). When I get home I drop it to about 60/60.
I highly recommend not going with the tow pressure unless you tow. It will wear the tire centers and you will have a noticably rougher ride with maybe more suspension wear and tear.
Don't use 4x4 unless the road is slippery(Ice, snow, mud, dirt etc). The tires have to be able to slip a little in turns or you will burn out parts in the differential, lotso moola.
Good Luck,
Jim Henderson
My 94 F250 4x4 says to run with something like 50F/60R not towing and with something like 90F/90R towing. Naturally do not exceed the tire max rating in anycase. My current tires are rated 80PSI so when I tow my 8,000# trailer I go 80F/80R. (BTW F=Front, R=Rear). When I get home I drop it to about 60/60.
I highly recommend not going with the tow pressure unless you tow. It will wear the tire centers and you will have a noticably rougher ride with maybe more suspension wear and tear.
Don't use 4x4 unless the road is slippery(Ice, snow, mud, dirt etc). The tires have to be able to slip a little in turns or you will burn out parts in the differential, lotso moola.
Good Luck,
Jim Henderson
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