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Old 07-29-2012, 08:33 AM   #1
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Used Truck Decision

Hello, My wife and I are in the market for a $12-14,000 used diesel truck. Looking for a one ton crew cab. Can you recommend which rear end is best to pull a 12,000# trailer. Is there any fuel economy ratings for lets say around a 2001 diesel trucks in the various brands? I know its not alot of money to be putting out on a TV, but its what we have to work with. Thanks
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Old 07-29-2012, 08:57 AM   #2
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Quote:
Originally Posted by timberframe View Post
Hello, My wife and I are in the market for a $12-14,000 used diesel truck. Looking for a one ton crew cab. Can you recommend which rear end is best to pull a 12,000# trailer. Is there any fuel economy ratings for lets say around a 2001 diesel trucks in the various brands? I know its not alot of money to be putting out on a TV, but its what we have to work with. Thanks
I would suggest you look for 3.73 or (numerically) higher rear axle. EPA does not require mileage ratings for 3/4 or one ton pickups so you will have to rely on others to report their experiences. If your trailer is a fifth-wheel, I also strongly suggest you look into a dually as, in my experience anyway, they are quite a bit more stable.
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Old 07-29-2012, 09:47 AM   #3
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As for axle ratio, first decide on how big of a trailer you intend to tow. On the 1999 to 2002 Ford F350 duallies, they only came with a 4.10 axle. With the horrible 6.0L diesel, they did offer a 3.73 axle in the dually.

Make sure your truck has sufficient GVWR to carry the high pin weight of a larger 5th wheel if that is your direction. The 2002 F350 had a max GVWR of 11,500#.

On another note, all of the trucks of similar size tend to get pretty much the same fuel mileage when towing. Dodge with the 5.9L inline 6 tended to do a little better than the Ford or the Chevy. What it boils down to is it takes so much power to pull a large trailer and all of the power comes from fuel.

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Old 07-29-2012, 09:54 AM   #4
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Ok if I have this correct, in theory a 3.73 would get better mileage than a 4.10. But the 4.10 would have a little bit more power. Is that right?
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Old 07-30-2012, 08:16 AM   #5
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Ok if I have this correct, in theory a 3.73 would get better mileage than a 4.10. But the 4.10 would have a little bit more power. Is that right?
You have it right.
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Old 07-30-2012, 09:16 AM   #6
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Here is a free downloadable PDF booklet from Turbo Diesel Regiser.Com ; this is a buying guide for use diesel trucks. It is geared for the Dodge Cummings engine equipped trucks but most of the information in the book can be applied to any make of diesel trucks.
http://www.turbodieselregister.com/magazines/buyersguide.phtml
Good luck.
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Old 07-30-2012, 09:35 AM   #7
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Any year 5.9 cummins dodge 3/4 is a good choice. I have a v10 ram, and it's also a great truck
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Old 07-30-2012, 12:08 PM   #8
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Ok if I have this correct, in theory a 3.73 would get better mileage than a 4.10. But the 4.10 would have a little bit more power. Is that right?
Right, but, unless you are going to pull a 5th over 15,000 lbs a 3:73 will do fine and get you better mpg.
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Old 07-30-2012, 04:28 PM   #9
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4:10s out on the highway is NOT what you want.
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Old 07-30-2012, 04:43 PM   #10
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4:10s out on the highway is NOT what you want.
That all depends. The later 6.7L trucks (January 1, 2007 onward) use a double overdrive 6-speed automatic (68RFE) with both 5th and 6th gear as overdrive ratios. 60 MPH in 6th gear is only 1612 RPM with my truck. The 4.10s are excellent for both towing and running empty.

You can't look just at the rear axle ratio; you must also consider the transmission gear ratios.

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Old 07-30-2012, 06:46 PM   #11
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Pre-2004 F350s with the 7.3 motor are getting premium prices because few people want to buy anything with the 6.0 motor. Agree that a Chrysler product with the 5.9 Cummins is a good choice. I don't know anything about the GM products. A 3.73 or higher axle is necessary to maximize your pulling power. A 4.10 would be better.
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Old 07-30-2012, 11:41 PM   #12
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Wow, everyone is all over the map here. With under 12k to spend he is not going to get a 2007 and above truck with 6 speed trans so let's be real here....
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Old 07-31-2012, 04:15 AM   #13
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I got really luck and you could to if you look long enough. I bought a 2002 dodge extra cab LB 3500 4x4 DRW with 125000 on the clock and paid 10,000 for it. It has the 4.11 rear end with the auto. And pulls my 14,500 pound camper very well. Some will say that that year the tranny is not to good and I tend to agree but I now have 145000 on the clock and the tranny is still pulling fine it has never been touched. Other than fluid filter change ever 20000 miles. Good luck in your search. PS mine is over my GCWR because of the auto truck is only rated at 18500 GCWR.
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Old 07-31-2012, 09:18 AM   #14
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Wow, everyone is all over the map here. With under 12k to spend he is not going to get a 2007 and above truck with 6 speed trans so let's be real here....

+1..
in the price range mentioned, you are looking at a pre-2002. I seen a nice 2000 f-350 with a 7.3 for 13k the other day. as everyone already mentioned, stay clear of the 6.0 ford. find you a 7.3 that dont already have a million miles on it. good luck in your searches
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