C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Need an answer to my diff question ASAP

Thread Tools
 
Search this Thread
 
Old Aug 11, 2005 | 12:47 PM
  #1  
sprinter's Avatar
sprinter
Thread Starter
Burning Brakes
20 Year Member
 
Joined: Oct 2003
Posts: 959
Likes: 12
From: California CA
Default Need an answer to my diff question ASAP

Quick question: can a 2.73 diff be rebuilt with 3.73 gears or are there some major differences that limit this?

Thanks.
Reply
Old Aug 11, 2005 | 01:54 PM
  #2  
DTE Powertrain's Avatar
DTE Powertrain
Collections Hold
 
Joined: Aug 2002
Posts: 2,899
Likes: 6
From: Fort Wayne Indiana
Default

Yes, yes and no.
Reply
Old Aug 11, 2005 | 02:55 PM
  #3  
sprinter's Avatar
sprinter
Thread Starter
Burning Brakes
20 Year Member
 
Joined: Oct 2003
Posts: 959
Likes: 12
From: California CA
Default

Thanks DTE. Someone just told me you need a spacer for the 2.73 and it would be better to get a 3.15 or 3.42 diff as a core. What is this about?
Reply
Old Aug 11, 2005 | 03:00 PM
  #4  
DTE Powertrain's Avatar
DTE Powertrain
Collections Hold
 
Joined: Aug 2002
Posts: 2,899
Likes: 6
From: Fort Wayne Indiana
Default

There is that and a couple of other modifications required to make this type of 2-series differential work properly and live for HP use.

We can do it for you if you wish.
http://www.dynotech-eng.com/dte_c5_diff.htm
Reply
Old Aug 11, 2005 | 03:27 PM
  #5  
Zip Corvettes's Avatar
Zip Corvettes
Platinum Supporting Vendor
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Sep 2001
Posts: 3,665
Likes: 341
Default

I don't think I would trust one with the shim/spacer in it. The problem is also with the housing. The VSS sensor is in the wrong spot. The shim has teeth in it like the ring gear but, by running a shim you lose the press of the gear on the carrier and you are required to run longer ring gear bolts which just weakens it. It would be better to start with a 3:15 assembly first. The next problem is you will need to have tuning for the shift pionts in the tranny.
Reply
Old Aug 11, 2005 | 03:42 PM
  #6  
DTE Powertrain's Avatar
DTE Powertrain
Collections Hold
 
Joined: Aug 2002
Posts: 2,899
Likes: 6
From: Fort Wayne Indiana
Default

I don't think I would trust one with the shim/spacer in it. The problem is also with the housing. The VSS sensor is in the wrong spot. The shim has teeth in it like the ring gear but, by running a shim you lose the press of the gear on the carrier and you are required to run longer ring gear bolts which just weakens it.
People have been saying this forever and there is NOT a "problem" with a coverted 2-series differential when built properly with our special procedures we have implemented here.

We have been converting 2-series differentials with any gear ratio of choice for HP street & racing use for three years now with outstanding success in performance and durability, despite everyone saying, "it can't be done reliably", "it won't work", "it's weaker", what-have you......... We also build differentials for many of the tuners behind the scenes for their customer's cars, in addition for many folks on this board~ both 2 and 3-series with many of them living heathly lives on the drag strip.

Do whatever you wish, but don't allow miss-information such as this scare you away from doing what you want to do. (no dis-respect intended to the poster) We have the experience here to do the job *RIGHT* and our positive reputation of building HP differentials has already been proven time and time again.

Many people have stated that a 2-series differential can't be built reliably~ we've proven them wrong over and over again many times...

FYI if you're interested.
Reply

Get notified of new replies

To Need an answer to my diff question ASAP





All times are GMT -4. The time now is 11:38 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE