RPO code for 3.31 gears?
Thread Starter
Drifting
Joined: Feb 2004
Posts: 1,277
Likes: 1
From: Santa Maria CA
RPO code for 3.31 gears?
i got an 84' Z51 auto, i don't have the G92 option on my list but can tell its got a better ratio than 2.73's! i had 3.07's in my 87 and the 84 is a little shorter in mph in all gears than the TPI 87'.....what is it guys and gals?
Team Owner
Joined: Dec 2000
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From: SE NY
Cruise-In II Veteran
Re: RPO code for 3.31 gears? (SHINOBI-X)
My '88 A4 with stock 2.49s & stock tires turns 2,000rpm at 80mph in 4th with the TC locked.
Give me comparable data and we can do the math on your gears.
Give me comparable data and we can do the math on your gears.
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Re: RPO code for 3.31 gears? (SHINOBI-X)
The standard ratio for ALL 1984's was 3.07. RPO code, G44. The 3.31 gears could only be ordered with the Z51 package. Most Z51s have 3.07s as do all others. The 3.31 gears are RPO code, GW4. 1984s with 3.31s should have both the GW4 and the G92 option codes. Also, ALL 1984s have the Dana 36, manual or automatic.
RACE ON!!!
RACE ON!!!
Thread Starter
Drifting
Joined: Feb 2004
Posts: 1,277
Likes: 1
From: Santa Maria CA
Re: RPO code for 3.31 gears? (CFI-EFI)
CFI-EFI - i dont' have any codes with a G? im stumped. my rpm seems to be high for what it is. in my other 87' it was right under 2000rpm for 70mph around 1900 for 70 i could adverage on the freeway with 3.07's.so i assume i've got 3.31's. even thought i can't seem to find the code for my car to make sure of it,im sure they are what they feel like. :confused:
Safety Car
Joined: Dec 1999
Posts: 4,691
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From: Framingham MA
Re: RPO code for 3.31 gears? (SHINOBI-X)
I did some one 84 RPO's a long time ago and 3.07 weren't G44, I think they were a H code. List you all your RPO myself or someone else should be able to decode your factory gear code.
[Modified by dgoodhue, 12:29 PM 4/14/2004]
[Modified by dgoodhue, 12:29 PM 4/14/2004]
Race Director
Joined: Sep 2000
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From: The Top of Utah
Re: RPO code for 3.31 gears? (SHINOBI-X)
CFI-EFI - i dont' have any codes with a G? im stumped. my rpm seems to be high for what it is. in my other 87' it was right under 2000rpm for 70mph around 1900 for 70 i could adverage on the freeway with 3.07's.so i assume i've got 3.31's. even thought i can't seem to find the code for my car to make sure of it,im sure they are what they feel like. :confused:
I did some one 84 RPO's a long time ago and 3.07 weren't G44, I think they were a H code. List you all your RPO myself or someone else should be able to decode your factory gear code.
RACE ON!!!
Thread Starter
Drifting
Joined: Feb 2004
Posts: 1,277
Likes: 1
From: Santa Maria CA
Re: RPO code for 3.31 gears? (CFI-EFI)
good points ya'll,ive done a carfax on the car yesterday and had not reports of anything done major to the car besides smog and service maint. thats besides the fact but,tach being off....possible. it could be,i'll look tommaorow in the morning and post what i see. i do have some H codes that is but no G codes and its a Z51 car. i'll jack up the car tommaorow also to see about counting the turns and i'll check the rearend for an I.D. tag. i'll be back in the morning! thanx again, mike :D
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Instructor
Joined: Nov 2001
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From: Watertown CT
Re: RPO code for 3.31 gears? (SHINOBI-X)
My 84 has the base FE1 suspension, with MM4 4+3 trans. I also have no G codes on my build sticker, however i also have HE3. If CFI-EFI is right about only Z-51's having 3.31's, then i should have 3.07's.... but then shinobi should too.
Thread Starter
Drifting
Joined: Feb 2004
Posts: 1,277
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From: Santa Maria CA
Re: RPO code for 3.31 gears? (da747)
DAN,there other 84xfire people who claim to have the G92 option. now all i can imagine is that they had a later production model vette? maybe so. or my speedo could be off and i could have the wrong tire diameter when pluggin in the data to figure it out. http://www.woodyg.com this is woody's fairlane site and go to caluculators at the bottom part of the screen and check it out. tell me what you guys think
Race Director
Joined: Sep 2000
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From: The Top of Utah
Re: RPO code for 3.31 gears? (SHINOBI-X)
DAN,there other 84xfire people who claim to have the G92 option.
If CFI-EFI is right about only Z-51's having 3.31's, then i should have 3.07's.... but then shinobi should too.
SHINOBI-X,
It is obvious from the code that your car was built with 3.07s, but I'll bet a nickle against a donut, that it's been changed.
RACE ON!!!
[Modified by CFI-EFI, 6:01 PM 4/15/2004]
Thread Starter
Drifting
Joined: Feb 2004
Posts: 1,277
Likes: 1
From: Santa Maria CA
Re: RPO code for 3.31 gears? (CFI-EFI)
thanx for all you help vette guru's. my speedo might be off or someone might have changed gears or swaped another D36 out for the original. i id' the D36 case to make sure it was really a D36 and was wondering if there was a date that could be visible on the housing? i cant' see anything from underneth when i was looking under it.i have can jack it up on 4 corners by jacks or go into my dads shop. but i dont' see a code or any markings. :confused: