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Performance rear end??

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Old 08-14-2017, 12:57 AM
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lectroglide
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Default Performance rear end??

Have a 95 and cant figure out if it has the performance rear end, someone just told me if thiers a corvette emblem on the seats then it does have it.. we checked some numbers around the car but couldn't really find any thing that pertained to the rear end
Old 08-14-2017, 05:14 AM
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Originally Posted by lectroglide
Have a 95 and cant figure out if it has the performance rear end, someone just told me if thiers a corvette emblem on the seats then it does have it.. we checked some numbers around the car but couldn't really find any thing that pertained to the rear end
'95 SPID label should be on the rear storage lid behind seat and will display RPO option content. If you find a G92 then the car was built with option.

In this post is a '95 SPID with G92 and G44, performance axle and 3.07 ratio. If your '95 is an A4 then maybe expect these or likely GM1 which would be 2.59


https://www.corvetteforum.com/forums...post1592006786
Old 08-14-2017, 11:07 AM
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vader86
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Look for the RPO codes that start with "G", that will tell you. G92 by itself means different things in different years, but basically means nothing.

Its the other G codes that tell you what the gearing was from the factory.

Last edited by vader86; 08-14-2017 at 11:07 AM.
Old 08-14-2017, 02:31 PM
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Cool Runnings
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I got lucky, 3.07 ratio on the 92.
Old 08-14-2017, 02:32 PM
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myc493sg
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Originally Posted by lectroglide
Have a 95 and cant figure out if it has the performance rear end, someone just told me if thiers a corvette emblem on the seats then it does have it.. we checked some numbers around the car but couldn't really find any thing that pertained to the rear end
where would you find out what gear ratio it is too?

Last edited by myc493sg; 08-14-2017 at 02:34 PM.
Old 08-14-2017, 02:51 PM
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drcook
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there will be a label such as this that will have the codes on it. you might have to look for the label, then you look up the RPO codes





Old 08-16-2017, 09:59 PM
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Gene D
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Default Where could my stickers be?

1993 I looked under the rear hatch on Pass side. Just jack location sticker.
Never could get drivers side open. Traction control is there I think.
I have 2 unreadable stickers on drivers door edge.
Haven't found mine yet.
Old 08-17-2017, 05:04 AM
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Originally Posted by Gene D
1993 I looked under the rear hatch on Pass side. Just jack location sticker.
Never could get drivers side open. Traction control is there I think.
I have 2 unreadable stickers on drivers door edge.
Haven't found mine yet.
'93 is on the center console lid. Unless it's been removed or the lid changed it should be there. Check the VIN to be sure it's for the correct car and not a replaced lid from another.
Old 08-17-2017, 04:20 PM
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Gene D
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Default Not under center lid

Looked as soon as I read your post
Old 08-17-2017, 04:25 PM
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Originally Posted by Gene D
Looked as soon as I read your post
Take your VIN to a GM Parts Dept and they can give you an RPO "Option Content" that will include all.
Old 08-17-2017, 04:40 PM
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mtwoolford
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did I miss something or does anyone know what the exact G92 "Performance Ratio" is?

answer: 3.453

Last edited by mtwoolford; 08-17-2017 at 04:47 PM.
Old 08-19-2017, 08:20 PM
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L.V. Vette
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The combination of G92 and G44 RPO codes provides the performance rear end. Test drove a few C4s before buying mine and I can easily tell the difference in throttle response between the two. As long as the car is fairly stock.
Old 08-19-2017, 08:39 PM
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Originally Posted by drcook



this is my car, a 96, so as the previous poster clarified, the combination of the 2 codes works out that I have a 3.07 gear set
Old 08-19-2017, 09:22 PM
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My 95


Old 08-20-2017, 12:22 PM
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lectroglide
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Originally Posted by L.V. Vette
The combination of G92 and G44 RPO codes provides the performance rear end. Test drove a few C4s before buying mine and I can easily tell the difference in throttle response between the two. As long as the car is fairly stock.
you mean the car comes unglued when you nail it?
Old 08-20-2017, 12:37 PM
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Originally Posted by mtwoolford
did I miss something or does anyone know what the exact G92 "Performance Ratio" is?

answer: 3.453

3.45 was for the 6-speed manual and not available in the automatic.
Old 08-20-2017, 03:50 PM
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L.V. Vette
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Originally Posted by lectroglide
you mean the car comes unglued when you nail it?
The performance ratio makes the car much more responsive. It is not a subtle difference.

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Old 08-20-2017, 04:08 PM
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BlowerWorks
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Default Rear Ratio

Originally Posted by L.V. Vette
The performance ratio makes the car much more responsive. It is not a subtle difference.
Why not jack it up and see ? So easy !!! Who's to say who swapped what when ??? Jack it up and count !
Old 08-20-2017, 07:39 PM
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jgalfo
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I have a 95 coupe with an auto and a RPO code pointing to a 2.59 ratio. I am having a 3.54 ratio installed. what should I expect in performance?

Last edited by jgalfo; 08-20-2017 at 07:40 PM.
Old 08-20-2017, 09:03 PM
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L.V. Vette
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Originally Posted by jgalfo
I have a 95 coupe with an auto and a RPO code pointing to a 2.59 ratio. I am having a 3.54 ratio installed. what should I expect in performance?
If your car is stock or close to stock, you should expect to have a completely different/improved urgency during acceleration. It will provide more performance than most other performance improvement. One of the biggest bang for the bucks.
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