transmission 3.99->3.55

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Jul 11, 2004 | 08:50 PM

nobuosan

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transmission 3.99->3.55

I own a 99 durango and was wondering if it's expensive to replace 3.92 transmission by 3.55 standard transmission. I don't tow anything so 3.92 is pretty much useless and waste of gas.

Jul 12, 2004 | 02:38 AM

orion7144

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RE: transmission 3.99->3.55

I think all you need to do is change the gears in the rear end and nothing in the transmision.

Jul 12, 2004 | 03:36 AM

Bamboo

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RE: transmission 3.99->3.55

To be honest there is virtually no difference in gas mileage between a 3.55 rear end geared Durango and a 3.92. Dude, you should keep them!

Jul 12, 2004 | 04:57 AM

nobuosan

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RE: transmission 3.99->3.55

Is it feasible to weekend mechanics like me?

Jul 12, 2004 | 11:58 PM

orion7144

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RE: transmission 3.99->3.55

Quote:

ORIGINAL: Bamboo

To be honest there is virtually no difference in gas mileage between a 3.55 rear end geared Durango and a 3.92. Dude, you should keep them!

I will have to disagree with you on this. Especially with the 04's. The 3.92's will pull more RPM's this decreasing gas mileage. On the 04's it is at a minimum of 2 mpg.

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