Very common problem!
1999 coupe
Thread Starter
Instructor
Joined: Feb 2006
Posts: 143
Likes: 0
From: floral city fl
1999 coupe
well i just bought my first c5 to go next to my two c3's a 1973 red coupe and a 1975 blue coupe. has anyone heard of seat problems on the c5. i noticed on the way home every time i a came to stop my drivers side seat move just a little bit forward. thanks scott
Drifting
Joined: Dec 2005
Posts: 1,314
Likes: 1
From: Chicago Illinois
its the dreaded rocking seat syndrome. i fixed mine in a couple of hours using washers that were grinded down to rectangular shapes to replace worn rubber bushings. there are threads on this. some harder than others. i removed my corkscrews(worm gears) instead of seperating the rails which made the repair faster.
Safety Car
Joined: May 2006
Posts: 4,289
Likes: 129
From: Providence Forge, VA
St. Jude Donor '08-'09-'10-'11-'12
Here's the TSB on it. As stated, there's some fixes in posts on the Forum:
Bulletin No.: 02-08-50-002
Date: March, 2002
TECHNICAL
Subject:
Driver Seat Movement During Acceleration and Braking
(Replace Adjuster Assembly)
Models:
1997-2002 Chevrolet Corvette
with Power Seats (RPO AG1 or AG2)
Built Prior to VIN Breakpoint 25106379
Condition
Some customers may comment on excessive movement in the driver seat during vehicle acceleration and braking.
Correction
A new seat adjuster assembly has been released to correct this condition. Replace the adjuster assembly.
Refer to Front Seat Adjuster Replacement (SI Document ID# 656483) in the Seats sub-section of the Service Manual.
Parts Information
Parts are currently available from GMSPO.
Bulletin No.: 02-08-50-002
Date: March, 2002
TECHNICAL
Subject:
Driver Seat Movement During Acceleration and Braking
(Replace Adjuster Assembly)
Models:
1997-2002 Chevrolet Corvette
with Power Seats (RPO AG1 or AG2)
Built Prior to VIN Breakpoint 25106379
Condition
Some customers may comment on excessive movement in the driver seat during vehicle acceleration and braking.
Correction
A new seat adjuster assembly has been released to correct this condition. Replace the adjuster assembly.
Refer to Front Seat Adjuster Replacement (SI Document ID# 656483) in the Seats sub-section of the Service Manual.
Parts Information
Parts are currently available from GMSPO.
Team Owner
Joined: Sep 2002
Posts: 30,591
Likes: 4,617
From: Bonita Springs, Florida
You're going to love the C5 
Here are some very good instructions on the fix for the rocking seat problem:
http://forums.corvetteforum.com/show...t=rocking+seat
http://robbs.js-x.com/ken/vette1/
This write up is in the tech section but the pictures have been removed: https://www.corvetteforum.com/techti...=251&TopicID=1
Although I have read that this is a common problem and seen numerous posts on this, I have owned six C5's during the last 6 years and I have only noticed the problem (very slightly) on only one of them, my '98 Silver Convertible. In fact it was barely noticeable at all. Good luck withe the fix. Post some pics of your 3 Vettes.
Here are some very good instructions on the fix for the rocking seat problem:
http://forums.corvetteforum.com/show...t=rocking+seat
http://robbs.js-x.com/ken/vette1/
This write up is in the tech section but the pictures have been removed: https://www.corvetteforum.com/techti...=251&TopicID=1
Although I have read that this is a common problem and seen numerous posts on this, I have owned six C5's during the last 6 years and I have only noticed the problem (very slightly) on only one of them, my '98 Silver Convertible. In fact it was barely noticeable at all. Good luck withe the fix. Post some pics of your 3 Vettes.
Safety Car
Joined: Dec 2002
Posts: 4,338
Likes: 66
From: Whittier California
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The C5s have been known to have a rocking seat problem - there have been several posts made on how to fix them. If you can't find them, send me a PM with your e-mail address and I have some Word files on the rocking seat problem that I can send to you.