tanks 
3.23 to 3.73
Thread Starter
Staging Lane
Joined: Apr 2011
Posts: 73
Likes: 0
From: san jose ca
3.23 to 3.73 ok guys the time has come....
im going to send my 96 camaro ss 4a to the shop.but now that im going to change the barings n cups...should i change to 3.73s or stay with the 3.23???
im going to send my 96 camaro ss 4a to the shop.but now that im going to change the barings n cups...should i change to 3.73s or stay with the 3.23???
TECH Fanatic
Joined: Aug 2008
Posts: 1,740
Likes: 2
From: Nebraska
I switched mine from 3:23 to 3:73 and love it! I have a 6 speed but i'm sure you can tell a significant difference with your A4 also. My buddies 94 Z28 does 2400 RPM at 65 MPH with 3:73's in case you're wondering. I never ran my 3:23's at the track so I dont know how much i gained but I ran a 13.71 @100.97 MPH 1.97 60' with just gears in my car.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
I wouldn't go lower than a 3.73 if you drive the car alot. If you had an M6 I'd have said lower. If you can find one quick, you could go to a 3.42 out of a 94+ M6 car for alot cheaper than repairing your rearend. Then you could build yours up later....or just take the money saved and start putting it aside for something stronger.
I wouldn't go lower than a 3.73 if you drive the car alot. If you had an M6 I'd have said lower. If you can find one quick, you could go to a 3.42 out of a 94+ M6 car for alot cheaper than repairing your rearend. Then you could build yours up later....or just take the money saved and start putting it aside for something stronger.
Stay stock or 3.73 or 4.x
I'm always the guy that'll use a break as a time for an upgrade. Not fixing it with equally bad oe parts.
4.10's or numerically higher gears in a little ten bolt are only fun for a short time if you have any traction. If you don't have any traction....you'd probably run quicker with the 3.73's or 3.42's anyway.
As far as equally bad oe parts: I doubt a gear ratio and bearing change would be any higher quality parts than OE no matter what brand you get or who sets them up. Not enough that you'd notice anyway. The fact is....it's a 7.5" rear and it's not going to last long if you get on it alot. Also, I bet an OE 3.42 rear in good shape will be quieter than most rears with aftermarket lower gears.
Anyone want a TA style cover or a pair of Moser axles?
Okay...i was told my car has lower gears when i bought it, but not quite sure what i have.
Its a pretty stock A4 and at 65mph im turning 2250rpms....guess that means i got 3.73's.
If thats true the car gets 16mpg and on crappy street tires punching it in first is good for alot of smoke. lol
I just ordered some Nitto Dr's...def a must with 3.73's.
Its a pretty stock A4 and at 65mph im turning 2250rpms....guess that means i got 3.73's.
If thats true the car gets 16mpg and on crappy street tires punching it in first is good for alot of smoke. lol
I just ordered some Nitto Dr's...def a must with 3.73's.
I have a 6 spd. but i had 3.42's and i went to 4.10's. best thing i have done to my car. makes it alot of fun to drive. not that it wasn't before. I havent notice any gas milage decrease at all really either. You wont regret getting gears.
Depending on what the car is used for and its powerband should determine what gear and tire combination should be used. Stating one set of gears is a waste of time over another when little information is given is dumb. What is known is putting something more than a 3.73 gear in an auto is useless unless the power band can accommodate the final ratio.
www.f-body.org/gears
www.f-body.org/gears
Last edited by SS RRR; May 10, 2011 at 06:49 AM.
For me it was pretty easy. I had a LPE combination and ran 4.10 gears and was constantly running 12.2's to 12.4's at low 114mph. I found out I was going well past power peak when crossing the traps so I geared down to a 3.73 and started running 12.0's to 12.2's at mid 115mph with virtually the same 60' and I was crossing the traps right at power peak with the 3.73 gears.
With my new SR combination I had the same 3.73 gears and ran high 11's @ 120mph with horrid 1.8 60' times. I put in 4.56 gears and ran a best of 11.22 @ 122 with a 1.55 60' time and I know there's more left since that was ran on a 75* day.
Basically what I would do is study different combos or see if there's one that is close to what you have and see what gears they are running. Your tire choice souly depends on what your ET goals are. For me 27" Hoosiers are everything I'll ever need for my setup and I chose the gears accordingly.
One of the best tools I have found to give you a ballpark estimate is the link I supplied: www.f-body.org/gears
With my new SR combination I had the same 3.73 gears and ran high 11's @ 120mph with horrid 1.8 60' times. I put in 4.56 gears and ran a best of 11.22 @ 122 with a 1.55 60' time and I know there's more left since that was ran on a 75* day.
Basically what I would do is study different combos or see if there's one that is close to what you have and see what gears they are running. Your tire choice souly depends on what your ET goals are. For me 27" Hoosiers are everything I'll ever need for my setup and I chose the gears accordingly.
One of the best tools I have found to give you a ballpark estimate is the link I supplied: www.f-body.org/gears