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Custom Dodge Ram Performance Mods - Engine - 3.7 Liter V6 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 3.7-liter V6 engine - 210 horsepower, 235 lb-ft of torque.


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  #1  
Old 08-24-2009, 11:28 AM
aggie aggie is offline
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Default Useless Overdrive Gear

Have stock gears for 3.7L V6 single cab short bed Dodge Ram, and the overdrive gear is just about useless on the highway. You need a level road with absolutely zero wind in order for it to keep a constant speed. Otherwise, it will always lose speed. I end up just turning overdrive off while on the highway. What can I do to fix this? Gear swap? Programming? I have a K&N CAI, Jet chip, and aftermarket 22" chrome wheels w/ low pro tires. If gear swap would do it, which one should I get?
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Old 08-24-2009, 11:49 AM
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Maybe go to 3.92 gears with those rims and tires?
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Old 08-24-2009, 01:14 PM
aggie aggie is offline
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Thats what I was thinking, just want to make sure that would alleviate the problem.
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Old 08-25-2009, 11:34 AM
aggie aggie is offline
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I see 3.90 gears all over for 9.25" rear differential (I'm assuming that's what is on mine), are these the right ones? I don't see 3.92...
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Old 08-25-2009, 05:27 PM
aggie aggie is offline
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*bump* ?

....
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Old 09-27-2009, 06:11 PM
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Default perhaps a solution to our problem...

Hi Aggie, I to have the very same problem with my truck. if you have a dodge ram 1500 standard cab short bed w/ a 3.7L then chances are you are running a 3:55 gear ratio. i have done a K&N and a magnaflow exhaust so far but still experiencing the same problems as you. my next move is to up the gears from 3:55 to 3:90 or 3:92. there is really no difference in those two gears, but it does depend who you buy from, from any gear shop you will get a 3:90 if you go direct with dodge u will get 3:92. the difference is cost. from a shop about $250 just for gears from a dodge dealer about $500. plus labor from dodge is about $800 and the labor from an ASE certified shop is about $400. hope this helps!

JIM
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Old 01-21-2010, 02:06 AM
casualboy454 casualboy454 is offline
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I have an '06 1500 reg. cab with the 3.7 and the 6-speed manny, and it's bone stock, actually it's the work special model, so it's ultra stock, lol, and i really have no problem at all flattenin hills in 6th...
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Old 01-21-2010, 12:08 PM
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spending $$$$$ to keep your ram running is always a good thing

DODGE RAM=MONEY PIT
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Old 01-21-2010, 12:27 PM
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Quote:
Originally Posted by grandpaclint View Post
spending $$$$$ to keep your ram running is always a good thing

DODGE RAM=MONEY PIT
Of course we all know that you NEVER have to spend money on any other brand of truck out there!
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Old 01-21-2010, 12:48 PM
jkulysses jkulysses is offline
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Quote:
Originally Posted by casualboy454 View Post
I have an '06 1500 reg. cab with the 3.7 and the 6-speed manny, and it's bone stock, actually it's the work special model, so it's ultra stock, lol, and i really have no problem at all flattenin hills in 6th...
Ya but what gearing did it come with from the factory?
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