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Transmissions and Drivetrain Need help with your trans? Problems with your axle?

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Old 04-05-2006, 10:32 PM   #1
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Car: 90 Formula
Engine: Procharged LB9
Transmission: 700R4
Axle/Gears: 2.73 posi

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verifing rear gear ratio on 4thgen rear

how can I verify the gear ratio with out pulling the cover. I know on thirdgens they have a code stamped on the axle tube. there is a bar code label with some numbers on it, will that tell me anything

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Old 04-06-2006, 04:46 AM   #2
ede
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pull the cover it's way easier and more accurate that looking around for the codes.
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Old 04-06-2006, 08:55 AM   #3
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Only three gear ratios on the 4th gen cars.
2:73 & 3:23 on Autos.
3:42 on Manual
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Old 04-06-2006, 09:21 AM   #4
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Pull the cover:

Count teeth on ring and divide by pinion
or:
Find the gear ration stamped on the ring gear(if its there) and divide.


Or mark a wheel stud and count how many times the yoke turns to complete one revolution of the wheel stud.

Ie 3 1/4 turns = 3:23

3.5 = 3:42

Less than 3 = 2:73

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Jeremy
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Old 04-06-2006, 09:21 AM
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