How do I know what my Final Gears are?
Thread Starter
On The Tree
Joined: Feb 2007
Posts: 163
Likes: 0
From: Olney, MD
How do I know what my Final Gears are? Since the search isn't working lately I can't find out by searching. So...
How can I tell what I have? I've messed around with the computer a lot so the "RPM at 60/70 mph" way won't work.
Thanks!
How can I tell what I have? I've messed around with the computer a lot so the "RPM at 60/70 mph" way won't work.
Thanks!
If you are referring to what gears are in the axle itself, you can use the code on the door to find out. another way to do it that is pretty easy is to jack the car up, crawl under it and watch the driveshaft while someone spins the tire one whole revolution, for example, if they spin the tire 1 revolution, and the driveshaft spun around 3 1/2 times then you have a 3.42 in the axle, if the driveshaft spun around 3 and 3/4 times then it would be a 3.73, and so on and so on. Hope this helps
assuming stock rear end:
m6 is 3.42....all were from 94+
and what does messing with the computer have to do with your gear ratio? or did you change the speedo settings even though you didn't change gears? and if so...WHY?
auto will have either 3.23 or 2.73
pull the trans into 1st....speed up to 15mph
if you're going 1600rpm you have 2.73
if you're going 2000rpm you have 3.23
m6 is 3.42....all were from 94+
and what does messing with the computer have to do with your gear ratio? or did you change the speedo settings even though you didn't change gears? and if so...WHY?
auto will have either 3.23 or 2.73
pull the trans into 1st....speed up to 15mph
if you're going 1600rpm you have 2.73
if you're going 2000rpm you have 3.23
Thread Starter
On The Tree
Joined: Feb 2007
Posts: 163
Likes: 0
From: Olney, MD
assuming stock rear end:
m6 is 3.42....all were from 94+
and what does messing with the computer have to do with your gear ratio? or did you change the speedo settings even though you didn't change gears? and if so...WHY?
auto will have either 3.23 or 2.73
pull the trans into 1st....speed up to 15mph
if you're going 1600rpm you have 2.73
if you're going 2000rpm you have 3.23
m6 is 3.42....all were from 94+
and what does messing with the computer have to do with your gear ratio? or did you change the speedo settings even though you didn't change gears? and if so...WHY?
auto will have either 3.23 or 2.73
pull the trans into 1st....speed up to 15mph
if you're going 1600rpm you have 2.73
if you're going 2000rpm you have 3.23
When I say that I adjusted the computer settings I mean the Rev Limiter and the Shift Points... on of those hypertech power programmers... it came with the car when I bought it used.
Thread Starter
On The Tree
Joined: Feb 2007
Posts: 163
Likes: 0
From: Olney, MD
If you are referring to what gears are in the axle itself, you can use the code on the door to find out. another way to do it that is pretty easy is to jack the car up, crawl under it and watch the driveshaft while someone spins the tire one whole revolution, for example, if they spin the tire 1 revolution, and the driveshaft spun around 3 1/2 times then you have a 3.42 in the axle, if the driveshaft spun around 3 and 3/4 times then it would be a 3.73, and so on and so on. Hope this helps
Thank you in advance.
On The Tree
Joined: Apr 2006
Posts: 189
Likes: 0
From: Trenton NJ
You can try using this program and see what rpms you are running.
Transmission Calculator - Chevy Camaro Z28 (6 Speed)
I would suggest that you use an OBDII scanner to track your RPMS and speed not the cluster since in my experience they are not the most actuate especially factory tachs.
Transmission Calculator - Chevy Camaro Z28 (6 Speed)
I would suggest that you use an OBDII scanner to track your RPMS and speed not the cluster since in my experience they are not the most actuate especially factory tachs.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo Thread Starter
On The Tree
Joined: Feb 2007
Posts: 163
Likes: 0
From: Olney, MD
Sorry about being in the wrong section. When I posted this was the first place that came to my. I'll make sure I don't do it again.
Stock Gear Ratios:
M6: 3.42
A4 Standard: 2.73 (GU2 code on the door sticker)
A4 Performance Axel: 3.23 (GU5 code on the door sticker)
WS6 and SS models came with 3.23s.
Your A4 did not come with 3.42s.
If your sticker is gone you tell which gears you have by your highway rpms:
3.23s @ 2000 rpm = 67 mph; 2.73s @ 2000 rpm = 80 mph
3.15s were available in A4 Vettes
M6: 3.42
A4 Standard: 2.73 (GU2 code on the door sticker)
A4 Performance Axel: 3.23 (GU5 code on the door sticker)
WS6 and SS models came with 3.23s.
Your A4 did not come with 3.42s.
If your sticker is gone you tell which gears you have by your highway rpms:
3.23s @ 2000 rpm = 67 mph; 2.73s @ 2000 rpm = 80 mph
3.15s were available in A4 Vettes
TECH Fanatic
Joined: Sep 2003
Posts: 1,265
Likes: 4
From: St. Clair Shores Mi.
TECH Fanatic
Joined: Sep 2003
Posts: 1,265
Likes: 4
From: St. Clair Shores Mi.
Sorry the Vin won't tell you.
Best bet is to do like said above in post #2
Spin the wheels one rotation. And count how many times the driveshaft spins for that one rotation of the wheel. Mark the shaft with a chalk line or something similar.
Best bet is to do like said above in post #2
Spin the wheels one rotation. And count how many times the driveshaft spins for that one rotation of the wheel. Mark the shaft with a chalk line or something similar.
if i remember correctly on the LT1s
if you have the option on the shift column to use 1st gear...than you have 3.23s
if you don't than they are 2.73s
its easily modified to allow the use of 1st...but if the console doesn't have a 1st than you have 2.73s
if you have the option on the shift column to use 1st gear...than you have 3.23s
if you don't than they are 2.73s
its easily modified to allow the use of 1st...but if the console doesn't have a 1st than you have 2.73s
TECH Fanatic
Joined: Sep 2003
Posts: 1,265
Likes: 4
From: St. Clair Shores Mi.
I forgot about that.