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

Changing gears in a 9"

Thread Tools
 
Search this Thread
 
Old Jan 23, 2010 | 07:28 PM
  #1  
1BAD_LS1's Avatar
Thread Starter
Restricted User
iTrader: (36)
 
Joined: Sep 2008
Posts: 1,268
Likes: 0
From: Alliance Nebraska
Default Changing gears in a 9"

I want to change from my 3.70 gears to 3.00 gears in my 9".....

I was curious if anyone has done it????? I have never changed gears and wanted to get some opinions of how hard it will be...

What do i need? new crush sleeve/shims, bearings???? Im not even sure about what i need to do a gear swap in a 9"....

I didn't see a writeup, so any help would be greatly appreciated!!!!!

I have though about selling my center and getting a new one with 3.00 gears already installed lol... but i can get just the gears for $60..
Reply
Old Jan 23, 2010 | 08:30 PM
  #2  
SS SLP2's Avatar
11 Second Club
iTrader: (8)
 
Joined: Jan 2002
Posts: 1,782
Likes: 0
From: SILSBEE TX
Default

Try this

http://www.youtube.com/watch?v=bSCUck4M6W4
good luck, just take your time
Johnny
Reply
Old Jan 23, 2010 | 10:06 PM
  #3  
1BAD_LS1's Avatar
Thread Starter
Restricted User
iTrader: (36)
 
Joined: Sep 2008
Posts: 1,268
Likes: 0
From: Alliance Nebraska
Default

Good video... but do i have to have that Dial indicator?????
Reply
Old Jan 23, 2010 | 10:22 PM
  #4  
1BAD_LS1's Avatar
Thread Starter
Restricted User
iTrader: (36)
 
Joined: Sep 2008
Posts: 1,268
Likes: 0
From: Alliance Nebraska
Default

I would like to do it myself, just for the experience and im a do-it-yourself kind of guy....

but this seems like it just might be easier/cheaper to have it done at a shop.... by the time i buy the tools and stuff i could have it done at a shop probably...

Got some gears for $60... how much would a shop charge me to install the gears????
Reply
Old Jan 24, 2010 | 05:40 AM
  #5  
the_merv's Avatar
Banned
iTrader: (88)
 
Joined: Mar 2006
Posts: 21,019
Likes: 893
From: The Beach...
Default

The Dial Indicator you can get from Harbor Freight for like $25. If you have the tools to remove the Chunk you have the tools needed to swap gears.

I'm going to change mine out this summer..going from 3.50's to 3.90's..
Reply
Old Jan 24, 2010 | 02:43 PM
  #6  
1BAD_LS1's Avatar
Thread Starter
Restricted User
iTrader: (36)
 
Joined: Sep 2008
Posts: 1,268
Likes: 0
From: Alliance Nebraska
Default

Originally Posted by the_merv
The Dial Indicator you can get from Harbor Freight for like $25. If you have the tools to remove the Chunk you have the tools needed to swap gears.

I'm going to change mine out this summer..going from 3.50's to 3.90's..
HELL YA! Looks like ill be doing a gear swap in my 9" soon...
Reply
Old Jan 24, 2010 | 07:33 PM
  #7  
bww3588's Avatar
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default

just curious where your getting gears so cheap. if they are used, make sure the seller gives you backlash and a picture of the pattern before he took it apart, or the gears are pretty much worthless. they will make noise and wear really quick.
Reply
Old Jan 26, 2010 | 09:25 PM
  #8  
1BAD_LS1's Avatar
Thread Starter
Restricted User
iTrader: (36)
 
Joined: Sep 2008
Posts: 1,268
Likes: 0
From: Alliance Nebraska
Default

Originally Posted by bww3588
just curious where your getting gears so cheap. if they are used, make sure the seller gives you backlash and a picture of the pattern before he took it apart, or the gears are pretty much worthless. they will make noise and wear really quick.
gears are used off ebay... they are marked!

Thanks for the tip!!
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jan 26, 2010 | 09:28 PM
  #9  
1BAD_LS1's Avatar
Thread Starter
Restricted User
iTrader: (36)
 
Joined: Sep 2008
Posts: 1,268
Likes: 0
From: Alliance Nebraska
Default

I think i have everything needed!

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT

http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWNX:IT

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT

I will have a total of $98... thats not to bad!
Reply




All times are GMT -5. The time now is 11:57 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE