C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Is This Normal

Thread Tools
 
Search this Thread
 
Old Sep 21, 2006 | 10:48 PM
  #1  
Tim81's Avatar
Tim81
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2006
Posts: 1,058
Likes: 27
From: Eastern North Carolina
Default Is This Normal

I recently purchased my first Corvette. It's a 81 and my question is, when I shift it into drive I can feel the rear end sink down about an inch or two. When I shift back to park or neutral the rear end comes back up. Is this normal or is something wrong? The car seems to handle fine. Thanks for any info in advance. I hope that I haven't been asking to many questions.
Tim
Reply
Old Sep 21, 2006 | 10:55 PM
  #2  
SIXFOOTER's Avatar
SIXFOOTER
Le Mans Master
Supporting Lifetime Gold
10 Year Member
 
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
Default

Don't ya just luv it? Thats normal
Reply
Old Sep 21, 2006 | 10:57 PM
  #3  
surfshark's Avatar
surfshark
Pro
 
Joined: Mar 2005
Posts: 559
Likes: 0
From: James Island South Carolina
Default

Yep, it's normal. If it clunks though, that's when you have to check it out.
Reply
Old Sep 21, 2006 | 11:02 PM
  #4  
...Roger...'s Avatar
...Roger...
Race Director
 
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Default

Normal but make sure your idle is not too high-idle too high makes that dip worse.
Reply
Old Sep 22, 2006 | 07:50 AM
  #5  
Tim81's Avatar
Tim81
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2006
Posts: 1,058
Likes: 27
From: Eastern North Carolina
Default

Thanks for the info. I does feel cool.
Reply
Old Sep 22, 2006 | 09:23 AM
  #6  
bickel's Avatar
bickel
Instructor
 
Joined: Feb 2005
Posts: 136
Likes: 0
Default

gotta love the dip reminds me of a summo wrestler getting ready to charge!!HUUHT 81 owner here to!!
Reply
Old Sep 22, 2006 | 04:16 PM
  #7  
kdf1986's Avatar
kdf1986
Safety Car
20 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Jun 2004
Posts: 4,652
Likes: 80
From: Lakeland Florida
Default

Corvette Squat!!!!

kdf
Reply
Old Sep 22, 2006 | 09:07 PM
  #8  
toddrob's Avatar
toddrob
Advanced
10 Year Member
 
Joined: Aug 2005
Posts: 88
Likes: 0
From: Naperville Illinois
Default

Originally Posted by surfshark
Yep, it's normal. If it clunks though, that's when you have to check it out.
What would a clunk indicate?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Sep 22, 2006 | 09:30 PM
  #9  
corvette4life's Avatar
corvette4life
Racer
20 Year Member
 
Joined: Apr 2002
Posts: 311
Likes: 0
From: Charleston S.C.
Default

This is typical with the original fiberglass rear spring and a car of this age. The fiberglass springs don't sag with age like the metal springs but they do get softer. Even more noticeable with old shocks. If the rear feels "floaty" over bumps in the rear I would consider replacing the spring.

It won't hurt anything but it will feel soft in the rear.
Reply
Old Sep 22, 2006 | 09:46 PM
  #10  
73-84 IMSA Widebody's Avatar
73-84 IMSA Widebody
Drifting
 
Joined: May 2006
Posts: 1,544
Likes: 0
From: Youngstown Ohio
Default

Typically "clunk" means check your U joints.
Reply
Old Sep 22, 2006 | 09:49 PM
  #11  
toddrob's Avatar
toddrob
Advanced
10 Year Member
 
Joined: Aug 2005
Posts: 88
Likes: 0
From: Naperville Illinois
Default

Originally Posted by 73-84 IMSA Widebody
Typically "clunk" means check your U joints.
What is the procedure for checking the U-joints?
Reply
Old Sep 22, 2006 | 10:01 PM
  #12  
73-84 IMSA Widebody's Avatar
73-84 IMSA Widebody
Drifting
 
Joined: May 2006
Posts: 1,544
Likes: 0
From: Youngstown Ohio
Default

They begin to "clunk" from wear, they become loose or sloppy allowing excessive play, if you here them clunk you can usually move them by hand, or get under the car and have someone put into drive-neutral-drive etc. (carefully, try not to get run over)until you can determine which joints are worn. It can be drive shaft or rear end half shaft joints. If they are worn I would usually replace all, at least all drive shaft or all rear end joints unless they are relatively new and there is a reason one has worn excessivly. It's also possble to get the "clunk" in your transmission, but that is a far bigger problem.
Speaking of problems, is THIS normal>>:<<Click for larger view
Reply
Old Sep 22, 2006 | 10:21 PM
  #13  
vettecrazy88's Avatar
vettecrazy88
Pro
15 Year Member
 
Joined: Dec 2005
Posts: 709
Likes: 1
From: Lakewood Colorado
Default

Yep normal. Gettin ready to jump!
Reply
Old Sep 22, 2006 | 10:41 PM
  #14  
3rd_Vette's Avatar
3rd_Vette
Drifting
 
Joined: Aug 2006
Posts: 1,694
Likes: 0
From: Oregon
Default

Perfectly normal.. the next thing you will notice is when you get on the highway, other Vette owners will wave to you!
Reply
Old Sep 22, 2006 | 10:47 PM
  #15  
eileenthevette's Avatar
eileenthevette
Instructor
 
Joined: Mar 2006
Posts: 233
Likes: 0
From: Fishers IN
Default

Originally Posted by 73-84 IMSA Widebody
Speaking of problems, is THIS normal>>:<<Click for larger view
THAT is nowhere NEAR normal.
Reply

Get notified of new replies

To Is This Normal





All times are GMT -4. The time now is 07:13 AM.

story-0
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-1
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
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE