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V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) Driveshafts | Differentials | Gears | Rearends | Clutch | Shifters

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Old 05-13-2009, 01:41 AM   #1
Camaro_Psycho
 
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Another Rear End Question

Hey guys.
Sorry to be a total noob, but how does the gears work?? What I mean is that, what does the actual number mean? When it says 4.56 gears, what does that mean? Is it for every 4.56 times turn of the drive shaft does the tires turn 1once or vise versa or what?

Thanks
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Old 05-13-2009, 03:41 AM   #2
TT C6
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Quote:
Final Drive Ratio

The gear ratio in a vehicle's differential. The ratio expresses the number of turns required by the pinion (which is attached to the output shaft of the transmission) to turn the drive axle one revolution, i.e. 2.73:1 means the pinion must turn 2.73 times to turn the drive axle once. A higher number means a lower (or shorter) gear. Short gearing gives quicker acceleration, but because the engine must turn faster, gas mileage and top speed are lower. Tall gears give better acceleration and higher top speed, at the expense of acceleration.
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Old 05-13-2009, 08:58 AM   #3
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Quote:
Originally Posted by TT C6 View Post
Final Drive Ratio

The gear ratio in a vehicle's differential. The ratio expresses the number of turns required by the pinion (which is attached to the output shaft of the transmission) to turn the drive axle one revolution, i.e. 2.73:1 means the pinion must turn 2.73 times to turn the drive axle once. A higher number means a lower (or shorter) gear. Short gearing gives quicker acceleration, but because the engine must turn faster, gas mileage and top speed are lower. Tall gears give better acceleration and higher top speed, at the expense of acceleration.


I think that should be better mileage and higher top speed, at the expense of acceleration.
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Old 05-13-2009, 10:36 AM   #4
lrc250
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Quote:
Originally Posted by Camaro_Psycho View Post
Hey guys.
Sorry to be a total noob, but how does the gears work?? What I mean is that, what does the actual number mean? When it says 4.56 gears, what does that mean? Is it for every 4.56 times turn of the drive shaft does the tires turn 1once or vise versa or what?

Thanks
Yes, for every 4.56 turns of the drive shaft the tire rotates once. --> 4.56:1
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