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

2.73 to 3.73 ?

Thread Tools
 
Search this Thread
 
Old Jun 16, 2005 | 10:40 PM
  #1  
jtb5351's Avatar
Thread Starter
Teching In
 
Joined: Aug 2004
Posts: 6
Likes: 0
Default 2.73 to 3.73 ?

i have a 98 ta i belive i have a 2.73 i want to go to a 3.73 can somebody tell me what i should buy to do this. i have somebody to install but i need to bring him everthing to to do it. thank you for your help.
Reply
Old Jun 19, 2005 | 04:39 PM
  #2  
gwj's Avatar
gwj
TECH Addict
 
Joined: Nov 2001
Posts: 2,003
Likes: 0
From: Live Oak, FL - in the woods where the creatures lurk.
Default

If you have GU2 on the sticker on your drivers' door you have 2.73s.
That is a 2 series carrier, so you will have to buy gears for a 2 series carrier unless you are going to basically gut it and go with a 3 series. The installer will need a crush sleeve,(or solid sleeve),cover gasket, pinion seal, etc, shims maybe, or you can just buy the gears and get an install kit (such as Ratech). I would look at one of the sponsors sites that sell gears/kits and maybe call them up. Thunder Racing comes to mind, but there are several that carry or can get what you want.
Hope this helps. Never tore into a differential myself, just a nodding familiarity with the components.
Reply
Old Jun 20, 2005 | 12:15 AM
  #3  
Hambone 7's Avatar
TECH Enthusiast
 
Joined: Jan 2004
Posts: 574
Likes: 0
From: Chattanoga TN
Default

id say you would be set just buying the series 2 gears from any vendor (id recommend thunderracing.com to) and a basic install kit like gwj just described. you'll need the crush/solid pinion sleeve, bearings, and shims at the least if you reuse the stock bolts and hardware.

i just did the exact same swap on my car which has a th350 transmission, and damn does it put a smile on my face when i punch it from a roll
Reply




All times are GMT -5. The time now is 03:20 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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