Charlie K
Arkansas
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Joined: 04/08/2007
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I found the truck I've been looking for except it has the 4.10 axle ratio on the rear end. It's a 2008 SB 4x4 SRW 3500 Laramie package. I will be using this truck more for driving than towing and before I purchase I want to know what the difference in mileage to expect if it would have had a 3.73 axle ratio? I know it will probably be less but don't know how much. Any suggestions from people who have them would be appreciated.
Thanks
* This post was
edited 07/04/08 06:39pm by Charlie K *
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crickeydog
Marietta, Ga.
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I've had both and you'll appreciate the 4.10 when towing. The MPG difference to that of a 3.73 will be neglegable.
Happy camping!!! See ya'll down the road!!!
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2006 GMC 3500 SLT CC DRW 4X4 D/A LBZ,PREDATOR & FS2500 OIL FILTER
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RRyall
SW PA
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These trucks have so much power that you don't need to have the 4.10. It won't hurt, and as mentioned, you won't notice any real mileage difference. The heavier the load the easier it will be with the 4.10, but again, these trucks have so much power, and right off idle, that you won't need the higher ratio IMHO.
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C Schomer
Buckeye, Az.
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I like my 4.10 but a lot of people don't. My worst empty mpg is 18.3 and that is all city driving and summer - AC doesn't get shut off. If the 08 is an auto you will have doudle OD and it won't be too bad on the hiway. Craig
2003 Dodge HO CTD, NV5600, 4.10. Real 1Ton - pregnant with twin spare tires, 4WD - all on the rear. Aurora 2000 turbo, Diablo Predator, 4" muffler. 98 Sunnybrook 30RLFS 5th wh. WHOEVER INVENTED WORK DIDN'T HAVE AN RV!
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coolbreeze01
Redding, Ca
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With the 6-speed auto, these trucks are long legged. I have the 3:73, but I think the 4:10 would be fine. Power is great, mileage is fair to poor.
2008 Dodge 3500 CTD LB SRW 4X4 6-Speed Auto
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djgarcia95928
Chico, Ca. , USA
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crickeydog wrote:I've had both and you'll appreciate the 4.10 when towing. The MPG difference to that of a 3.73 will be neglegable.
Happy camping!!! See ya'll down the road!!!
I agree! I have a 3.73 , 6spd. 04 Dodge 3500 I get 14 mpg towing a 12K 32' trailer and 19 empty.
Dick 
djgarcia@earthlink.net
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dfb
gardnerville
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The only thing about the 4:10s is that you really don't want to drive over 65 since the revs start to get really noticed...
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camping man
Central Fla.
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You wouldn't need a 4.10 on that truck unless you pulling a house. My truck has 3.73s, and I still feel like I need a 7th gear on the highway, to many rpms for me, but it depends on you final trans. ratio.
05 Dodge 2500 Quadcab CTD NV5600/3.73rears
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floridacamper
Florida/Georgia Line
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If you do any hwy driving stay away from it. Poor mileage. I would look for the 3.73 with fuel prices only going up.
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SoCalDesertRider
SanDiego, CA, USA
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The 4.10 will get the same mileage as the 3.73 if you drive it about 10% slower, which means slowing down to 68 mph if you normally drive 75 mph.
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