97 and 01 differential
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 3,394
Likes: 12
From: Leon Iowa
St. Jude Donor '06-'07-'08-'09
97 and 01 differential
I was wondering if the differentials will interchange. My 97 has the 3.15 and is a A4 and the one I'm looking at is a 01 3.42 that had a 6spd. Didn't know if it would fit. Thanks
Melting Slicks
Joined: Jun 2001
Posts: 3,123
Likes: 3
From: Orland Park Illinois
St. Jude Donor '06-'07
Many people, myself included, have installed 3.42 (so called 6 speed) rear ends in their automatic transmission equipped C5's. Yes--they definately will fit and work great in your car. But, don't forget to get your shift points changed or you'll be in deep do do when you "nail her". Good luck... 
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 3,394
Likes: 12
From: Leon Iowa
St. Jude Donor '06-'07-'08-'09
Originally Posted by BiggieBoy
Many people, myself included, have installed 3.42 (so called 6 speed) rear ends in their automatic transmission equipped C5's. Yes--they definately will fit and work great in your car. But, don't forget to get your shift points changed or you'll be in deep do do when you "nail her". Good luck...
Race Director
Joined: Sep 2004
Posts: 17,786
Likes: 4
From: Redsox, Pats, Celts & Bruins !!! Redsox Nation !!!
St. Jude Donor '06-'07-'08-'09-'10-'11-'12
Originally Posted by mvvette97
What do you mean? I thought the shift points were measured by the tranny.
The speed is measured by the VSS, not the gears
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 3,394
Likes: 12
From: Leon Iowa
St. Jude Donor '06-'07-'08-'09
Originally Posted by screw991le
The speed is measured by the VSS, not the gears
Melting Slicks
Joined: Jun 2001
Posts: 3,123
Likes: 3
From: Orland Park Illinois
St. Jude Donor '06-'07
Originally Posted by mvvette97
So if i didn't change my shift points it would shift at a lower RPM. Am I right?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Originally Posted by BiggieBoy
In changing to a lower gear ratio (higher in number), at wide open throttle, the engine will over rev and be shut down by the rev limiter (I think around 61-6200 rpm) before the trans shifts to a higher gear UNLESS you have your PCM reprogrammed to compensate for the gear change.
also, when doing the carrier swap - don't forget to transfer over the seal plate from your existing one to the 3.42 carrier.
more info here:
http://mikemercury.home.att.net/342.htm
