3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Gear Ratio and PosiTraction Information

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Old Aug 15, 2007 | 08:59 AM
  #1  
davedye's Avatar
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From: Milton, Pa
Gear Ratio and PosiTraction Information

I bought a used 2006 Dodge 3500 Dually privately. How can I find out if it has a 3.73/410 rear and if it is positraction???

Thanks
Dave
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Old Aug 15, 2007 | 09:28 AM
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donnee's Avatar
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From: Simi Valley, Calif.
There should be a tag on the rear end that will state what the gearing is.
If thats missing, look on the glove compartment door aas there should be a paper that states the gearing.
If all else fails, request a build sheet from the dealer.
I would venture a guess and say you probably have 4.10s.
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Old Aug 15, 2007 | 09:36 AM
  #3  
Raspy's Avatar
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From: Smith Valley, NV (sometimes Redwood City, CA)
I don't think they are tagged anymore. Look at the spec sheet in the glove box. If the gearing is not mentioned I think it's 3:73, if it is mentioned it will say 4:10. Same is true for the trac-lok. No mention, not there.

The other way is to post your RPM at 60 in sixth, or OD if its an auto, and someone will chime in with the answer.

John
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Old Aug 15, 2007 | 09:56 AM
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From: Ila georgia
No tags since 03.Any Chrysler dealer can pull a build sheet for you.
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Old Aug 15, 2007 | 12:51 PM
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tag in glove box will give you three letter-digit option codes(G3U,DR3,etc)both posi and non-standard gear ratios will have an option code which you can check on in a dodge sales website under build your vehicle
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