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Discussion Starter #1
Looking at Brighten with 3.21 gears. What can I expect for power and fuel savings?

Thanks

David
 

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Don't understand the question since the Ecodiesel was NEVER available with a 3:21 rear-end ratio. Never saw it listed for 2015 models either. That ratio is for the gas engines.


I have no clue how the gas engines respond with the different ratios.
 

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Discussion Starter #5
Don't understand the question since the Ecodiesel was NEVER available with a 3:21 rear-end ratio. Never saw it listed for 2015 models either. That ratio is for the gas engines.


I have no clue how the gas engines respond with the different ratios.
Window sticker says 3.21. I believe it is incorrect. Anyway of looking at the truck and telling? Sticker on door? Truck not here u ntill tomorrow. Thanks.
 

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Discussion Starter #6
Don't understand the question since the Ecodiesel was NEVER available with a 3:21 rear-end ratio. Never saw it listed for 2015 models either. That ratio is for the gas engines.


I have no clue how the gas engines respond with the different ratios.
Window sticker says 3.21. I believe it is incorrect. Anyway of looking at the truck and telling? Sticker on door? Truck not here u ntill tomorrow. Thanks.
 

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Discussion Starter #7
Guess I'm just paranoid. I show Dealerships "options report" and it shows 3.55 gears. Window sticker shows 3.21 and I assume is a typing mistake. You know how it is, buying tonight and seeing truck tomorrow.

David
 

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Discussion Starter #9
Not signing any papers till I see the truck tomorrow, being brought in from los Angeles. Window sticker states 3.21 but dealer options show 3.55. I can find no where that says 3.21 is an option with the ecodiesel. How can I tell when the truck arrives tomorrow? Any thing on the vin? Seems to me in the glove box is something stating GVWR with such and such rear end. Sorry for some double posts. Still getting use to this smart phone.

David
 

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Not signing any papers till I see the truck tomorrow, being brought in from los Angeles. Window sticker states 3.21 but dealer options show 3.55. I can find no where that says 3.21 is an option with the ecodiesel. How can I tell when the truck arrives tomorrow? Any thing on the vin? Seems to me in the glove box is something stating GVWR with such and such rear end. Sorry for some double posts. Still getting use to this smart phone.

David
Both windows stickers i have had, both showed the standard equpiment listed then as you read on you will see the option for the ecodiesel. After that you should see the 3.55 or .92 rear end. This was the same on the challenger i ordered. It had the 3.55 gear then in th option after the Super Trac Pack, it had the 3.92 gear ratio.
 

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Discussion Starter #11
Shows ecodiesel then 3.21 gears. Read that window sticker several times and no where does it show 3.55.
Not sure what to think.
 

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Shows ecodiesel then 3.21 gears. Read that window sticker several times and no where does it show 3.55.
Not sure what to think.
Let's see if this shows up. The standard equipment will show a 3.21 gear ratio. Under optional Equipment you will see the upgrade to the 3.55 or 3.92 gears
 

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Discussion Starter #13
Let's see if this shows up. The standard equipment will show a 3.21 gear ratio. Under optional Equipment you will see the upgrade to the 3.55 or 3.92 gears
No where on that window sticker does it say 3.55 or 3.92 only shows 3.21.

David
 

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Look at the rear axle. Around the drivers side should be a sticker wrapped around the axle with the gear ratio written on it. Standard gear ratio for a 1500 is 3.21. Once the diesel option is added, it automatically ups it to a 3.55. Only option is 3.92s.
 

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Discussion Starter #16
Look at the rear axle. Around the drivers side should be a sticker wrapped around the axle with the gear ratio written on it. Standard gear ratio for a 1500 is 3.21. Once the diesel option is added, it automatically ups it to a 3.55. Only option is 3.92s.
As soon as the truck shows up I'll get underneath and check for a sticker. I don't have the window sticker but will this afternoon and will get a picture. I feel more comfortable knowing I can check under the truck. Paranoid for sure but big money involved. Wonder if it's possible for factory to have installed wrong axle? Sorry guys for beating this subject to death. I'm also going to be sure to get in writing that they will give me redress should the wrong gears be installed.
 

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Discussion Starter #18
Look at the rear axle. Around the drivers side should be a sticker wrapped around the axle with the gear ratio written on it. Standard gear ratio for a 1500 is 3.21. Once the diesel option is added, it automatically ups it to a 3.55. Only option is 3.92s.
J
If you have the vin i can pull the Sticker
Thanks Matty

Vin. 1C6RR6GMXES382422

Appreciate the help.
 
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