Gears & Axles Driveshafts | Rearends | Differentials | Gears | 12 Bolt | 9 Inch | Dana

2.73s to 3.23s?

Thread Tools
 
Search this Thread
 
Old Apr 6, 2010 | 03:07 AM
  #1  
camz28arro's Avatar
Thread Starter
TECH Enthusiast
iTrader: (12)
 
Joined: Nov 2008
Posts: 590
Likes: 0
From: Long Island, NY
Default 2.73s to 3.23s?

I was wondering how big of a difference they would make at the track. I hear some say it won't be noticable but that is 18% taller gearing. That would nearly be like going from 3.42s + 18% = 4.11s just in terms of percentage difference of course. I will not do 3.42s or 3.73s due to gas milage so if nobody feels the change is worth it, I will stay with the stocker.


Until somebody starts fabricating $1800 8.8's again, I can't afford anything else.

Last edited by camz28arro; Apr 27, 2010 at 06:19 AM.
Reply
Old Apr 6, 2010 | 03:12 AM
  #2  
Original bacon's Avatar
Registered User
 
Joined: Feb 2010
Posts: 11
Likes: 0
Default

3.23 are the way to go if you want driveability + better acceleration. You wont have your gears TOO torquey so you will still hook, and you won't sacrafice those MPGs compared to if you had 3.73. Though you will lose MPG with 3.23's, it won't be very noticeable.

You will probly pick up about .3 tenths or so

If anything, a stall should be picked up instead of gearing. if not already done.
Reply
Old Apr 6, 2010 | 04:10 AM
  #3  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by Original bacon
You will probly pick up about .3 tenths or so
You are on crack.

I would be surprised if you picked up anything more than one tenth. I would stick with what you have. You can get a used 9" for cheap (less than what you were saying with the 8.8).
Other than that, 3.73s aren't that bad at all. Unless you do a lot of highway driving (60+ mph) for extended amounts of time, you won't notice the difference between those and 3.23s.
If you are looking for a cheap alternative, go with 3.42s.
Reply
Old Apr 6, 2010 | 07:34 AM
  #4  
FirstYrLS1Z's Avatar
TECH Veteran
20 Year Member
Photogenic
Photoriffic
Active Streak: 30 Days
iTrader: (4)
 
Joined: Aug 2004
Posts: 4,219
Likes: 147
From: Euclid,Ohio
Default

window sticker mpg
my 98Z w3.23 17/25
98-02 w2.73 18/26

My 98Z with a window sticker mpg of 25 gave me 24.5,at freeway legal speeds on cruise control, for 6 trips to Florida from Cleveland,Ohio.
When I went to 4.56,3 identical trips to Florida gave me 21.5 mpg.
based on that,
3.23=24.5
3.73=23.5?
4.10=22.5?
4.56=21.5

in pure stock form,I was low 13.90s'
LS1s' with 2.73 in pure stock form were also low 13.90s'
Reply
Old Apr 6, 2010 | 10:24 AM
  #5  
pillarpod's Avatar
TECH Fanatic
 
Joined: Nov 2008
Posts: 1,776
Likes: 1
From: South Dakota
Default

i wouldn't waste your money, IMHO
Reply
Old Apr 6, 2010 | 03:53 PM
  #6  
camz28arro's Avatar
Thread Starter
TECH Enthusiast
iTrader: (12)
 
Joined: Nov 2008
Posts: 590
Likes: 0
From: Long Island, NY
Default

Thanks everybody, I guess if I find a low milage junkyard 3.23 rear then I will get it but not spend $ on my rear.

Lemons12, hopefully I could find a 12 bolt or 9in with 3.25's for $1800.That would be great.
Reply
Old Apr 6, 2010 | 04:00 PM
  #7  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by camz28arro
Thanks everybody, I guess if I find a low milage junkyard 3.23 rear then I will get it but not spend $ on my rear.

Lemons12, hopefully I could find a 12 bolt or 9in with 3.25's for $1800.That would be great.
Shouldn't be a problem, just keep your eye out in the FS section..

BTW, I have some 323 gears I took out of my TA that I would sell for cheap.. If interested let me know.. They are perfect with no gear whine. I went to 410s.
Reply
Old May 11, 2010 | 05:45 PM
  #8  
White94Bird's Avatar
TECH Enthusiast
15 Year Member
Liked
iTrader: (21)
 
Joined: Aug 2008
Posts: 525
Likes: 2
From: Texarkana, Texas
Default

What's the normal RPM for a auto with 3.23, LS1 going 70mph. sorry to thread jack.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo




All times are GMT -5. The time now is 02:09 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 18:13:20


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE