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2012 4.10 gears

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  #21  
Old 05-03-2012, 08:29 AM
hounddogg hounddogg is offline
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Unless something has changed there is nothing that has to be done with gear swap concerning speedo etc. Won't throw codes or any of that. Tire size it does but not gear swap. Speedo and such reads off tone ring on the differential.
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2009 1500 Slt Quad Cab 2wd Hemi.3.92 gear.White with pebble interior.Chrome bumpers,chrome door handles 20 inch wheels.Stainless Nerf bars,Tuff Country Tonneau cover,bedliner,Magnaflow XL 24 inch muffler with dual pipes exiting behind rear tires.2008 Corvette convertible.2003 Dodge dually diesel.2010 Mercury Gran Marquis.
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  #22  
Old 05-04-2012, 01:55 PM
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InterpunX InterpunX is offline
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Originally Posted by holydiver89 View Post
What kind of mileage you get with those gears compared to stock? I'm gonna be going with 35's on a 4" lift and calculated that i need a 3.77 gear to match the same gearing as 3.55's on stock 33's. Just wondering if going with a 3.92 or 4.10 would give me a tiny bit more grunt to stay in 4 cyl when cruising i'd like to maintain or improve my mileage best as possible with the lift, lemme know what you think thanks
I can't give you an exact number as far as fuel mileage, but it will difenayely improve over stock. If I were you I would go with at least 4.10. Depending on what you do 4.56 is still great butbetter for towing, when I'm empty a barely ever downshift on hills at all, has to be a pretty big hill. Even towing is awesome, compared to 3.55. If your always driving highway then 4.10 wih your setup.
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  #23  
Old 05-05-2012, 02:31 PM
holydiver89 holydiver89 is offline
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Yeah mostly just drive to work and back each day (4miles city ,5 miles freeway) my engine barely even gets up to temp so i get ****ty mileage regardless but the only towing i really do is 2 or 4 snowmobiles in the winter and i was stuck between a 3.73 (which would still be slightly undergeared for 35's) a 3.92 or a 4.10. Thanks for the advice!
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  #24  
Old 05-15-2012, 11:38 AM
Dusty48 Dusty48 is offline
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Originally Posted by spinxracer View Post
I have a 2012 ram 1500 5.7 and I want to install 4.10 gears. I talked to the dealership and they said that they have the parts to do it. It's a 4x2. He told me I could do it but I would run into a problem with it throwing codes. I currently run the 3.55. What's sensors would cause these problems to throw codes and is what he telling me true about it throwing codes? Thanks
I talked to a Dodge technician earlier today and he said there's a place in the PCM entry which must be updated when changing the axle ratio. This is important as it will affect some engine set points and the ABS computer. They've done a couple at his dealership. He doesn't believe you'd get a problem code if you didn't update the computer.

NOTE: If you have a 2012 you may have a ZF axle.

There's a ring and pinion kit for the Chrysler-built axle (05015371AE) that includes a new pinion seal (68056356AA), a front pinion bearing (05072498AA), and a rear pinion bearing (05017438AA).

Best regards,
Dusty
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  #25  
Old 05-15-2012, 12:02 PM
hounddogg hounddogg is offline
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Fair amount of gears changed posted on this and other sites. Never a mention of updating anything with gear change. Bet on the assembly line all settings are the same no matter the gearing. Only thing that is different is tire size. There is a place to update that. Now in 2011 or 2012 that might have changed but previous there is nothing to reprogram as the tone ring in the differential housing is giving the info to the computer system. But I bet someone posting that has changed gearing will let us know.
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2009 1500 Slt Quad Cab 2wd Hemi.3.92 gear.White with pebble interior.Chrome bumpers,chrome door handles 20 inch wheels.Stainless Nerf bars,Tuff Country Tonneau cover,bedliner,Magnaflow XL 24 inch muffler with dual pipes exiting behind rear tires.2008 Corvette convertible.2003 Dodge dually diesel.2010 Mercury Gran Marquis.
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  #26  
Old 05-17-2012, 08:43 AM
Dusty48 Dusty48 is offline
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Originally Posted by hounddogg View Post
Fair amount of gears changed posted on this and other sites. Never a mention of updating anything with gear change. Bet on the assembly line all settings are the same no matter the gearing. Only thing that is different is tire size. There is a place to update that. Now in 2011 or 2012 that might have changed but previous there is nothing to reprogram as the tone ring in the differential housing is giving the info to the computer system. But I bet someone posting that has changed gearing will let us know.
Yeah, I have to agree it doesn't seem that the PCM actually needs to know the axle ratio. The speed sensor sends the signal off the tone ring for ground speed. As far as that goes I don't understand why he said it was needed for ABS, for that matter. Maybe it's needed for traction control? I don't think the transmission cares, either. He did say certain "engine set points," which may be valid, and he also said it wouldn't generate any problem codes.

Best regards,
Dusty
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  #27  
Old 05-17-2012, 05:03 PM
hounddogg hounddogg is offline
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No nothing required for a gear change. Tires YES. Not to be a s/a but if there is more that must be a 2012 deal as no one has ever posted different. I'm not from Missouri but show in print what is adjusted or why.
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Last edited by hounddogg; 05-17-2012 at 05:06 PM..
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Old 05-17-2012, 05:03 PM
 
 
 
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