difference between 4WD and 4WD Low Range ?
Lead Driver
Joined: Oct 2009
Posts: 5,406
Likes: 229
From: Pa
OK maybe someone can help me with my 2005 F350 6L 4x4. When pulling my stock or RV trailer in soft feild conditions I have to put it in low range or the truck will just sit there and won't move. Even if I hold it to the floor it just won't move. As soon as I put it in low range it pulls it fine. I even run into this when starting a heavy load on pavement if I am going up much of a hill. I have taken it to several dealers and they say that is just the way they are. I find it hard to believe that you should have to put it in low range to start out on the highway and then put it back into high range once you get it moving. If I am starting out into traffic the truck also has no get up and go until it gets up to about 1500 rpm but then watch out as it takes off like a rabbit. Anyone also having this kind of thing happening?
Posting Guru
Joined: Oct 2009
Posts: 2,066
Likes: 4
From: Rogue River, Oregon
I've burned up automatics when backing up trailers, so to prevent that, I use 4Low every time I'm jockeying ANY trailer around, period. It makes it easier on me and easier on my transmission. I also use 4Low on sand or deep gravel and on hard-slick dirt roads. The road going to my local shooting range is very dry and very loose, yet in 4 low I go up it with no drama whatsoever. But a couple weeks ago, I was leaving and another Super Duty Ford was coming up, apparently in 4Hi and spun all the way to the top. I only use 4Hi on paved roads with snow or ice.
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