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Old 02-19-2011, 05:03 AM   #21
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It is easy to get the tranny fluid hot when backing a trailer. By using 4x4 lo you change the gear ratio so the tranny isn't working as hard. I have a temperature gauge on my transmission and it will climb quickly when jockeying the trailer in reverse. I don't think that reverse is geared as low as first gear in an automatic.
I agree, sometimes when backing in 4 lo, you barely even need to touch the gas. Makes a huge difference.
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Old 02-20-2011, 09:30 AM   #22
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I seen a 2wd Ranger PU stuck on a paved wet hill one time. No load at all. 4wd is a good option to have, for the simple reasons as listed above.
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Old 02-20-2011, 06:15 PM   #23
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Quote:
Originally Posted by clutch View Post
It is easy to get the tranny fluid hot when backing a trailer. By using 4x4 lo you change the gear ratio so the tranny isn't working as hard. I have a temperature gauge on my transmission and it will climb quickly when jockeying the trailer in reverse. I don't think that reverse is geared as low as first gear in an automatic.
Reverse is the lowest gear by far in my truck.

Allison 1000
Type : six-speed automatic
with Duramax 6.6L
Gear ratios
First: 3.10
Second: 1.81
Third: 1.41
Fourth: 1.00
Fifth: 0.71
Sixth: 0.61
Reverse: 4.49
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Old 02-20-2011, 09:01 PM   #24
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Talked to a friend of mine today, a 40 year professional mechanic. He says backing in 4 low while turning and jockying your trailer into a spot is a good way to tear up all kinds of things in a truck. He was flabbergasted that anyone would recomend such a stunt unless one needed it because of snow or ice. This guy knows his stuff, and also pulls a 28 ft trailer. I'll take his word for it.

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Old 02-21-2011, 04:07 PM   #25
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Everyone is entitled to they`re opinion. If my rear tires are spinning im using 4wheel drive. Ive never tore anything up using 4 lo ever. I think the only way you would tear anything up is if you were on pavement and you dont need 4wheel drive on pavement. Ive driven cheverolet all my life also, cant speak for the other trucks,and wouldnt own one.
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Old 02-21-2011, 04:21 PM   #26
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Everyone is entitled to they`re opinion. If my rear tires are spinning im using 4wheel drive. Ive never tore anything up using 4 lo ever. I think the only way you would tear anything up is if you were on pavement and you dont need 4wheel drive on pavement. Ive driven cheverolet all my life also, cant speak for the other trucks,and wouldnt own one.
Maybe I misunderstood. I was assuming you were on pavement. Other than dry camping, most of the campgrounds we have been to are paved. I still wouldn't do it, though. Too many parts with too much stress on them all locked up in 4 lo turning sharply doesn't sound good.

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Old 02-21-2011, 06:37 PM   #27
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4 high is no better on dry, solid surfaces than 4 lo! No amount of turning in 4WD, lo or high, on dry solid surfaces will be good for your driveline! Just sayin!
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Old 02-21-2011, 06:56 PM   #28
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x2. But on anything other than dry pavement where a tire can slip, it won't hurt a thing. Now I wouldn't do it all the time, but that is what you have 4x4 for.
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Old 02-21-2011, 08:02 PM   #29
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Just thinking about it..... I had a two wheel drive for many years. Never had a tranny overheating issue jockying my trailers into a space...

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Old 02-21-2011, 09:38 PM   #30
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I can't ever recall being stuck on a hard surface like pavement. I only use 4 lo on soft surfaces or if going straight back. You can get most trucks to operate in lo range and two wheel drive with some wiring and a switch. A member of the NorthWest Bombers had made up a kit for Dodges to use 2 lo.
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