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Not all Aisin are 4:10. I saw plenty that weren't when I was truck shopping.I didn't think you get get an aisin unless it had 4.10 gears? I know the 3.42 is the standard on all the 6.7. I think the 3.73 is the standard on the non diesel versions. So when they added the diesel to the package it changes it to 3.42 from 3.73 and then when you add the aisin it adds the 4.10 gears. I know the 1500 series trucks have a sticker or metal tag on the rear diff that states the gear ratio. I haven't looked under a 2500 or 3500 to see if the tag is equipped on them but its worth a look.
That’s weird I didn’t think Aisins care with the 3.42s. But just to clarify you can get 3.73s and 4.10s with the Aisin
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You can only get the 3.73 or 4.10 rear if you get the dually option. The single rear truck with Cummins can only be had with a 3.42 axle ratio.
I didn't think you get get an aisin unless it had 4.10 gears? I know the 3.42 is the standard on all the 6.7. I think the 3.73 is the standard on the non diesel versions. So when they added the diesel to the package it changes it to 3.42 from 3.73 and then when you add the aisin it adds the 4.10 gears. I know the 1500 series trucks have a sticker or metal tag on the rear diff that states the gear ratio. I haven't looked under a 2500 or 3500 to see if the tag is equipped on them but its worth a look.
If I’m not mistaking it looks like he does have the dually
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