Dually or not?
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Junior User
Joined: Feb 2004
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Dually or not?
Hello Fellow truck owners. I currently own a 2003 F-350 with 6.0 liter diesel. The truck is currently a single wheel but I'm considering a dually with 4.10 gear ratio to pull a new 2005 Cruiser 5th wheel (9,000-11,000) pounds. I currently am getting about 18 mpg on my 03' but was wondering what people are getting with the 4.10 as far as mpg.; both with hauling and no hauling situations? Help me make a good informed decision on whether its worth getting a dually with the 4.10? 
Junior User
Joined: May 2005
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there is some great info on fuel mileage with the 4.10 gears and why it is actually better than with the 3.73. Do a search and it should come up..unless someone has the link handy???? I have the dually 4X4 with 4.10 and love it. I tow a 13000lb fifth wheel and would have it no other way. I came from a SRW PSD and there is no comparison. I much prefer the ride in the dually even when not towing. I am getting mid 19's on the freeway at 70mph and about mid 15's around town. Towing I get between 12 and 13. My last trip with my trailer I got 12.7 calculated. You will regret not getting the 4.10. Good luck.
POsner
POsner
Senior User
Joined: May 2003
Posts: 248
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there is some great info on fuel mileage with the 4.10 gears and why it is actually better than with the 3.73. Do a search and it should come up..unless someone has the link handy???? I have the dually 4X4 with 4.10 and love it. I tow a 13000lb fifth wheel and would have it no other way. I came from a SRW PSD and there is no comparison. I much prefer the ride in the dually even when not towing. I am getting mid 19's on the freeway at 70mph and about mid 15's around town. Towing I get between 12 and 13. My last trip with my trailer I got 12.7 calculated. You will regret not getting the 4.10. Good luck.
Senior User
Joined: Mar 2004
Posts: 172
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From: Central Coast, CA
I just bought a new 05 CC LB FX4 6.0 DRW with 4.30's as part of the tow boss package. The RMPS are a little high at 70mph compared to my 03 CC SB FX4 6.0 SRW with 3.73's. I only have 600 miles on it and I haven't towed yet (installing the 5er on Sunday) but I suspect that I should have got the 4.10's. Just my thoughts about the 4.30's.
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Posting Guru
Joined: Mar 2003
Posts: 1,008
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From: Port St. Lucie, FL
Mileage should not be a consideration when you are figuring on a tow vehicle, Safety should.
If the 5th wheel is of any size/weight you should have a DRW. It is much more stable.
If you are near the top end of the weight rating on your SRW, I would also look at a DRW.
If the 5th wheel is of any size/weight you should have a DRW. It is much more stable.
If you are near the top end of the weight rating on your SRW, I would also look at a DRW.
Last edited by 02PSD4ME; Jul 29, 2005 at 08:49 AM.
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