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

What to replace next??

Thread Tools
 
Search this Thread
 
Old Dec 30, 2005 | 08:04 PM
  #1  
Localbulldog's Avatar
Localbulldog
Thread Starter
Racer
10 Year Member
 
Joined: Aug 2005
Posts: 280
Likes: 0
Default What to replace next??

76 L-48 Coupe
The shop I use removed the rear end for a complete rebuild,replaced the rear wheel bearings both sides (end play set), replaced the e brake pads, replaced the side yokes and lock rings, all u joints replaced.

The shop has been great about it, as a matter of fact he has removed the rear end to check the clutches and fluid twice !

The problem is the right rear still makes a bump and grind noise while turning in a tight radius in either direction.

The trailling arm bushings look great and all the shims are in place.

What do I replace next ??
Reply
Old Dec 30, 2005 | 08:32 PM
  #2  
SanDiegoPaul's Avatar
SanDiegoPaul
Race Director
Supporting Lifetime
 
Joined: Sep 2002
Posts: 10,362
Likes: 5
From: San Diego - Deep Within The State of CONFUSION!
Default

Originally Posted by Localbulldog
76 L-48 Coupe The shop has been great about it, as a matter of fact he has removed the rear end to check the clutches and fluid twice !

What do I replace next ??
Sounds like classic diff. if it only does it when turning. Have them replace the clutches and add GM posi lube to the rear end.
Reply
Old Dec 30, 2005 | 08:39 PM
  #3  
Localbulldog's Avatar
Localbulldog
Thread Starter
Racer
10 Year Member
 
Joined: Aug 2005
Posts: 280
Likes: 0
Default

Thats the thing, been there and done that ...................twice. The clutches have been replaced and the diff fluid put in. Is there something else in the rear end that could be messed up causing this?
Reply
Old Dec 30, 2005 | 10:14 PM
  #4  
indy99's Avatar
indy99
Melting Slicks
15 Year Member
 
Joined: Aug 2005
Posts: 2,560
Likes: 5
From: the land of a never ending frame-off resto-mod. May Visa have mercy on my soul.
Default

Have you tried making several tight circles in a parking lot in both directions? This will help pull lube up into the clutches. This is a common problem. It will usually work.
Reply
Old Dec 30, 2005 | 10:27 PM
  #5  
rihwoods's Avatar
rihwoods
Race Director
10 Year Member
 
Joined: Feb 2005
Posts: 16,100
Likes: 17
Default

This may sound to simple,but what about the carrier mount cushion....
Reply
Old Dec 30, 2005 | 10:34 PM
  #6  
Eddie 70's Avatar
Eddie 70
Race Director
Supporting Lifetime Gold
St. Jude 10 Year Donor
25 Year Member
Liked
Community Favorite
 
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Default

Make sure they are adding the GM additive first and then the fluid.
Reply
Old Dec 30, 2005 | 10:39 PM
  #7  
big_G's Avatar
big_G
Le Mans Master
15 Year Member
 
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
Default

Originally Posted by Eddie 70
Make sure they are adding the GM additive first and then the fluid.
I would drive it for a few hundred miles. If noise persists, add 1 more bottle of G.M. posi. additive.
Reply
Old Dec 30, 2005 | 11:06 PM
  #8  
surveyor3447's Avatar
surveyor3447
Heel & Toe
 
Joined: Dec 2005
Posts: 18
Likes: 0
Default good luck I have been here too

There is a small clip that retains everything in alignment in the center core. one of them was broken when they installed new clutches or came loose putting in the short shaft. changed the carrier and rebuilt once more and worked fine just will not hold the power I am putting out. I need help there.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Michael S. Palmer
story-1

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

 Joe Kucinski
story-2

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

 Michael S. Palmer
story-3

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

 Joe Kucinski
story-4

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-5

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-6

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-7

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-8

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-9

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
Old Dec 31, 2005 | 05:42 PM
  #9  
Localbulldog's Avatar
Localbulldog
Thread Starter
Racer
10 Year Member
 
Joined: Aug 2005
Posts: 280
Likes: 0
Default

I replaced that too. Could it be warped rotors ? Trailing arms ? Everything looks and checks out good but something is making that noise................................... .....
Reply
Old Dec 31, 2005 | 06:45 PM
  #10  
jimmygmartin's Avatar
jimmygmartin
Racer
 
Joined: Sep 2004
Posts: 424
Likes: 2
Default

My '68 Vert does the same thing, funny thing is that it never did it before I rebuilt the Diff. I was changing the ring & pinion at a pro shop & decided to get a rebuild while I was at it. Added two bottles of aditive (second one after noticing the noise). Seems to go away with miles and come back after the winter shut-down. I stopped worring about it.
Reply
Old Dec 31, 2005 | 09:45 PM
  #11  
Localbulldog's Avatar
Localbulldog
Thread Starter
Racer
10 Year Member
 
Joined: Aug 2005
Posts: 280
Likes: 0
Default

I like the sounds of that !!
Reply
Old Jan 1, 2006 | 12:23 AM
  #12  
1971corvette's Avatar
1971corvette
Burning Brakes
 
Joined: Oct 2002
Posts: 1,040
Likes: 109
Default

Mine rearend makes noise also,only after I took it apart

I am driving it untill the noise goes away,then I will
on it some more.
Reply
Old Jan 1, 2006 | 05:56 PM
  #13  
Localbulldog's Avatar
Localbulldog
Thread Starter
Racer
10 Year Member
 
Joined: Aug 2005
Posts: 280
Likes: 0
Default

Thanks for the help. I'll put some GM Additive in after I take it out of storage.
Reply
Old Jan 3, 2006 | 07:15 PM
  #14  
Localbulldog's Avatar
Localbulldog
Thread Starter
Racer
10 Year Member
 
Joined: Aug 2005
Posts: 280
Likes: 0
Default

Okay, How do I drain and then refill the diff fluid ?
Thanks
Reply
Old Jan 3, 2006 | 09:30 PM
  #15  
GaryS's Avatar
GaryS
Melting Slicks
15 Year Member
 
Joined: May 1999
Posts: 2,897
Likes: 0
From: Moon Township PA
Default

Originally Posted by Localbulldog
Okay, How do I drain and then refill the diff fluid ?
Thanks
The differentials are drained by use of suction gun to draw out the old fluid and the gun is used to replace with your favorite differential fluid plus GM positraction additive.

Gary
Reply

Get notified of new replies

To What to replace next??





All times are GMT -4. The time now is 09:43 AM.

story-0
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-1
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-2
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-3
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-4
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
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE