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stock rearend question

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Old Jul 9, 2005 | 03:22 PM
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owndjoo's Avatar
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Default stock rearend question

i've been told that if a '00 has the auto shifter that can select down into 1, then it has 3.42's. is this correct? my mom got a z28 vert with pretty much every option including ASR and the stick has the 1 gear select.
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Old Jul 9, 2005 | 04:53 PM
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From: Houston (The Champions)
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That may not be all true. I had a 96' that had a 1st gear selector, but my Comaro only had a 2:73.. There is a simple trick to check it out for yourself. Jack the rea of the car up. Put jack stands under the axle tubes. Put the car in neutral, and get a friend to sit next to one of the tires. You get under the car, and put a mark on the pinion. As your friend turns the tire one full revolution you count how many time that mark on the pinion spins arouond, it souns like a crude way, but try it and youll see that it works. If it spins almost 3 full turns then you have a 2:73, if it goes 3 1/2 turns then you've got a 3:42...
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Old Jul 9, 2005 | 05:09 PM
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yeah i had 2.73's and have the 1 one the shifter
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Old Jul 9, 2005 | 05:23 PM
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No, that is not true. In fact 3.42 isn't even an option for an auto. Check the sticker on the inside of the driver's door. GU5 is 3.23's and GU2 is 2.73's (I think).
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Old Jul 9, 2005 | 07:15 PM
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the 1 feature is on all GM automatics
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Old Jul 9, 2005 | 11:44 PM
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it says gu2. i dont really care what this car has, since it's not even mine, but thanks for the info for my future purchase. btw, the car seems pretty top end oriented, so i could see if havin the taller gearing.
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