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Can't Find Gear Ratio

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Old 04-03-2013, 09:01 PM
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Default Can't Find Gear Ratio
I can't seem to find the gear ratio for my 02 Camaro Z28.

I took a picture of the sticker in the door jam, and I do not see GU* anywhere. I also looked in the glovebox and nothing.

It's an 02 Z28 A4.

See pic below:
Attached Thumbnails Can't Find Gear Ratio-pic.jpg  
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Old 04-03-2013, 09:11 PM
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Who told you its on the door jam sticker? I don't have a 4th gen, but look on the axle housing. For sure its on the ring gear.
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Old 04-03-2013, 09:15 PM
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Get the VIN # AND CALL A DEALERSHIP ask for parts and tell em u need to find out the gear ratio for your car and provide them with VIN #..
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Old 04-03-2013, 09:28 PM
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pop your vin in here and it will tell you more than what you want to know about your car

http://www.compnine.com/vid.php
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Old 04-03-2013, 09:55 PM
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Cool, thanks, looks like it's 2.73. Time to upgrade to 3.90 :O
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Old 04-03-2013, 10:33 PM
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Get the car on the hwy in lockup.

If it's 1500 at 60mph, it's 2.73. If it's 50mph at 1500... 3.23.
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Old 04-03-2013, 10:51 PM
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Not trying to thread jack or anything, but what gears would I have if my rpm's are at 2500 @ 70 mph?
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Old 04-03-2013, 11:02 PM
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Originally Posted by 2002 blue z28
Not trying to thread jack or anything, but what gears would I have if my rpm's are at 2500 @ 70 mph?
What tire? 3.90 if stock 26" tire.
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Old 04-04-2013, 12:05 AM
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245/50R16, factory wheels. It's a A4 if that matters at all.
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Old 04-04-2013, 06:04 AM
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BLK, what do you use this car for?
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Old 04-04-2013, 08:00 AM
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Originally Posted by Paul Bell
BLK, what do you use this car for?



It's a daily drive of sorts, but I only drive it like 5 miles a day. I have another car for long distances.

I have plans for it to hit the track eventually.
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Old 04-04-2013, 01:13 PM
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Originally Posted by pauls99z28
Get the VIN # AND CALL A DEALERSHIP ask for parts and tell em u need to find out the gear ratio for your car and provide them with VIN #..
Is the guy the origonal owner? May have been swapped out....
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Old 04-04-2013, 01:17 PM
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Just make sure it's in lockup and look at your speedo and tach. If you know the size of your tire, it's very easy to figure out your gear ratio...
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