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:

aluminum shift forks C5 .. help

Thread Tools
 
Search this Thread
 
Old Feb 14, 2005 | 04:19 PM
  #1  
pwrshhftd's Avatar
pwrshhftd
Thread Starter
Pro
 
Joined: Feb 2002
Posts: 600
Likes: 0
From: Kannapolis NC
Default aluminum shift forks C5 .. help

Does anyone know for sure what vin's are affected... by the TSB.. that pertains to aluminum shift forks?

I had my old 2002 repaired for this problem and the steel forks installed.
Now my new late 2002, is supposedly not affected, buy this TSB.

Where can I find the exact cutoff for this problem.

I have T-minus zero days till my warranty is out.
Thanks
Reply
Old Feb 14, 2005 | 04:38 PM
  #2  
tmickey's Avatar
tmickey
Instructor
 
Joined: Nov 2004
Posts: 124
Likes: 0
Default aluminum shift forks C5

Is this recall issue or what?
I just bought a 02,Z
Reply
Old Feb 14, 2005 | 05:39 PM
  #3  
pwrshhftd's Avatar
pwrshhftd
Thread Starter
Pro
 
Joined: Feb 2002
Posts: 600
Likes: 0
From: Kannapolis NC
Default

TSB i think its like 3080.. but i cant find it anywhere

the dealer claims, my car isnt affected..
i think it is


help!
Reply
Old Feb 14, 2005 | 07:42 PM
  #4  
pwrshhftd's Avatar
pwrshhftd
Thread Starter
Pro
 
Joined: Feb 2002
Posts: 600
Likes: 0
From: Kannapolis NC
Default

Its TSB 3020

can anyone help me find more info on this?
Reply
Old Feb 15, 2005 | 09:37 AM
  #5  
pwrshhftd's Avatar
pwrshhftd
Thread Starter
Pro
 
Joined: Feb 2002
Posts: 600
Likes: 0
From: Kannapolis NC
Default

ttt
Reply
Old Feb 15, 2005 | 12:03 PM
  #6  
early shark's Avatar
early shark
Melting Slicks
10 Year Member
 
Joined: Nov 2004
Posts: 2,672
Likes: 6
From: Nevada City California
Default

How late is your 2002 model?

My vin is 33893.
Reply
Old Feb 15, 2005 | 12:35 PM
  #7  
pwrshhftd's Avatar
pwrshhftd
Thread Starter
Pro
 
Joined: Feb 2002
Posts: 600
Likes: 0
From: Kannapolis NC
Default

production date feb 12th 2002

Last edited by pwrshhftd; Feb 15, 2005 at 12:57 PM.
Reply
Old Feb 15, 2005 | 06:44 PM
  #8  
RAFTRACER's Avatar
RAFTRACER
Melting Slicks
15 Year Member
 
Joined: May 2004
Posts: 2,502
Likes: 4
From: cincinnati ohio
Default

Originally Posted by pwrshhftd
Does anyone know for sure what vin's are affected... by the TSB.. that pertains to aluminum shift forks?

I had my old 2002 repaired for this problem and the steel forks installed.
Now my new late 2002, is supposedly not affected, buy this TSB.

Where can I find the exact cutoff for this problem.

I have T-minus zero days till my warranty is out.
Thanks
The information you are referring to was never a bulletin it was GM preliminary information, #pip3020. This information included ALL 97-03 Corvettes, 97-02 camaros and 97-02 pontiac firebird, with M12,MM6 or MN6. These parts were updated sometime during the '03 production, but I haven't yet researched exactly when. In addition to the aluminum shift fork being replaced they are also to replace the 3-4 synchronizer hub assy and both 3rd & 4th blocking rings.

This has been a problem on these cars for sometime, obviously. We have repaired may of these transmissions under warranty, but now GM seems reluctant to stand behind their product (or Tremec's). We are constantly under scrutiny by our district service manager on transmission repairs.(because this affects GM warranty cost greatly, partially because of much inflated parts prices).

Besides the fact that they think the shift fork is the culprit, the synchronizer hub keys are made of JUNK (stamped steel). Albeit expensive Rodney from RPM (crashed94) has available billet or tool steel keys which probably will never break and thats what I've been installing lately in our "REAL" cars. This is the component that causes the car not to shift properly between 3rd-4th.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Feb 15, 2005 | 10:38 PM
  #9  
pwrshhftd's Avatar
pwrshhftd
Thread Starter
Pro
 
Joined: Feb 2002
Posts: 600
Likes: 0
From: Kannapolis NC
Default

i changed dealers... and they are goign to do the swap fo rme this coming monday..

I will post my results
thx for the info
Reply
Old Sep 21, 2010 | 12:53 AM
  #10  
vettjeff's Avatar
vettjeff
3rd Gear
 
Joined: May 2010
Posts: 3
Likes: 0
Default Steel shift forks, when?

Isn't there anyone that can get/give a definitive answer on when the trans upgrades ('02-'03) were made? I have tried everything to find this out, including going directly to GM, nobody has an answer. You know that the way computer records are kept now they should be able to just punch this in and get the answer----they ignor you! Anyone else had the same problem? This has been my only post because everything else has been always simply answered. I don't know how all this posting works but you can answer me at jeffgemutliche@shasta.com
P.S. my 1st vette was a'58----things were much simpler then---yeah--I'm an "old" guy.
Thanks, Jeff
Reply

Get notified of new replies

To aluminum shift forks C5 .. help





All times are GMT -4. The time now is 12:41 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