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Old 10-01-2013, 08:16 PM   #1
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Gears explanation

On this site I've heard lots of reference to "2.73" or 3.73" or "4.10." What do those numbers mean, are those ratios? Are the numbers measurements to a part or component?

I have a '14 V6 base automatic, so from what I gather I have 2.73? I hear recommendations to go up to 3.6 or 3.73? What is the difference? What will change in my car? Does it shift faster, accelerate better? Is this a reprogramming like a tune, or an actual part replacement?

Thanks in advance for anyone who can school me.
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Old 10-01-2013, 08:22 PM   #2
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Theres answers to all in the search bar for gears I believe there may be a sticky as well and I know theres at least a link on a thread with all info on them where I learned. i just used the underrated search bar.
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Old 10-01-2013, 08:34 PM   #3
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It's a gear that replaces your rear end gear. It makes your car accelerate wayyyyyyy quicker. The bigger the gear the faster it will go 4:10 is a bigger gear than 3:73 or and your stock one
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Old 10-01-2013, 08:44 PM   #4
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In short:

Look under the rear of your car, there is a round shaped thing in the middle. Thats where your differential and gears are. The stock ratio for you is 2.73, which means the driveshaft turns 2.73 times for 1 wheel revolution. So a higher number like 3.73 means your driveshaft turns 3.73 times for 1 wheel revolution, meaning you will accelerate faster.

Theoretically, the higher the number the better the acceleration but lower top speed (not significantly reduced though).
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Old 10-01-2013, 08:46 PM   #5
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Great explanation!!
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Old 10-01-2013, 10:39 PM   #6
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Great explanation!!
Google is always your friend (and the great members of this site) for these types of questions!
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Old 10-31-2013, 07:40 PM   #7
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Do I need a tune if I get new gears?
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Old 10-31-2013, 08:53 PM   #8
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Yes, if you want your speedometer to be accurate.
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Old 11-01-2013, 09:38 AM   #9
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Get the gears and a tuner. You will not be disappointed
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Old 11-01-2013, 10:42 AM   #10
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Dont necessarily NEED a tune. Just get a recalibration for the speedo to be correct. Or best to just get a tuner and change the axle ratio. Remember if your speedo is incorrect so are your readings from the odometer.
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Old 11-01-2013, 11:05 AM   #11
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Dont necessarily NEED a tune. Just get a recalibration for the speedo to be correct. Or best to just get a tuner and change the axle ratio. Remember if your speedo is incorrect so are your readings from the odometer.
For an auto you will need one because it relys on the rpms to shift which will be off if you get gears.
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Old 11-01-2013, 11:20 AM   #12
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True. Didnt see it said auto.
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Old 11-01-2013, 11:27 AM   #13
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Just wait until the anti-gear/ pro- torque converters come and chime in.
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