C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Rear diff rebuild 2005

Thread Tools
 
Search this Thread
 
Old Nov 17, 2013 | 10:43 AM
  #1  
ez2spd's Avatar
ez2spd
Thread Starter
Melting Slicks
Supporting Lifetime
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2007
Posts: 2,014
Likes: 80
From: San Antonio Tx
Default Rear diff rebuild 2005

I'll be dropping the diff out of my 05 to replace the bearings ( loud whine upon deceleration while in gear, no noise when accelerating or in neutral ) at the same time I'll drop in some 4.10 gears, what kinda labor would a shop change to rebuild this? I was quoted 6-8 hours and to me seems outrageously high... I'll be ordering the gears from ECS where should I order bearings? Dealer?
Reply
Old Nov 17, 2013 | 01:48 PM
  #2  
saplumr's Avatar
saplumr
Race Director
Supporting Lifetime
15 Year Member
 
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Default

The real question should be "why are you wasting money on a 05 diff?"
Reply
Old Nov 17, 2013 | 01:52 PM
  #3  
timd38's Avatar
timd38
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Default

Originally Posted by saplumr
The real question should be "why are you wasting money on a 05 diff?"
05 diffs tend to be the worst of the bunch. Get a later year C6 or a C5 Z06.
Reply
Old Nov 17, 2013 | 02:13 PM
  #4  
RoadkingC6's Avatar
RoadkingC6
Drifting
10 Year Member
All Eyes On Me
Photogenic
Liked
 
Joined: Feb 2012
Posts: 1,428
Likes: 113
From: Brick NJ
Default

Originally Posted by timd38
05 diffs tend to be the worst of the bunch. Get a later year C6 or a C5 Z06.
I would tend to agree and if your plan is to go with 4:10s seems to me that would put even more stress on the launches which is what breaks the rears in 05s
Reply
Old Nov 17, 2013 | 06:28 PM
  #5  
ez2spd's Avatar
ez2spd
Thread Starter
Melting Slicks
Supporting Lifetime
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2007
Posts: 2,014
Likes: 80
From: San Antonio Tx
Default

I have only seen one conversion to bolt a +06 diff and not many reviews, the 06 diff is not a direct bolt on and will require modification vs using the 05 with a brace to the trans, the car sees no hard launches or track time , the reason for the 4.10 is simply for quicker accel on highway. Seeing how it will never see the 180mph mark loosing top end speed for lower end torque is what I'm after. The main reason for the gear change thought is I'll be in there changing the bearings why not add slightly larger gear ratio at same time.

Thoughts?
Reply
Old Nov 17, 2013 | 06:42 PM
  #6  
saplumr's Avatar
saplumr
Race Director
Supporting Lifetime
15 Year Member
 
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Default

This is what your future holds.



Reply
Old Nov 17, 2013 | 06:51 PM
  #7  
ez2spd's Avatar
ez2spd
Thread Starter
Melting Slicks
Supporting Lifetime
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2007
Posts: 2,014
Likes: 80
From: San Antonio Tx
Default

Yep! But was that caused by track use and hard launching? ZIP has a 06 conversion that works in 05
Reply
Old Nov 17, 2013 | 06:54 PM
  #8  
saplumr's Avatar
saplumr
Race Director
Supporting Lifetime
15 Year Member
 
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Default

Originally Posted by ez2spd
Yep! But was that caused by track use and hard launching? ZIP has a 06 conversion that works in 05
That was with street tires and no wheel hop! Replaced with RPM Z06 Stage III and now run NT05R tires with no worries.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Joe Kucinski
story-2

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

 Verdad Gallardo
story-3

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

 Joe Kucinski
story-4

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

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

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

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Michael S. Palmer
story-9

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

 Joe Kucinski
Old Nov 17, 2013 | 07:07 PM
  #9  
ez2spd's Avatar
ez2spd
Thread Starter
Melting Slicks
Supporting Lifetime
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2007
Posts: 2,014
Likes: 80
From: San Antonio Tx
Default

WoW! I'm running nitto invo car has 100k as I have driven all around the country ( little to no highway miles ) no track time seen nor hard launches ( original owner ).. However I want to be assured that if I wanted to, the car would hold up in any situation... Looking into the z06 diff upgrade now... Car is stock except bolt ons headers exhaust and varam intake
Reply
Old Nov 17, 2013 | 07:13 PM
  #10  
ez2spd's Avatar
ez2spd
Thread Starter
Melting Slicks
Supporting Lifetime
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2007
Posts: 2,014
Likes: 80
From: San Antonio Tx
Default

Level 2
http://www.lingenfelter.com/mm5/merc...Store_Code=LPE
Reply
Old Nov 17, 2013 | 07:13 PM
  #11  
saplumr's Avatar
saplumr
Race Director
Supporting Lifetime
15 Year Member
 
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Default

Originally Posted by ez2spd
WoW! I'm running nitto invo car has 100k as I have driven all around the country ( little to no highway miles ) no track time seen nor hard launches ( original owner ).. However I want to be assured that if I wanted to, the car would hold up in any situation... Looking into the z06 diff upgrade now... Car is stock except bolt ons headers exhaust and varam intake
The Z06 is a really good choice but you will have to change the trans mainshaft. You can see when mine broke it snapped the mainshaft so I had RPM beef up the trans while it was apart. Just noticed you want 4.10 gears so the Z06 is out.
Reply
Old Nov 17, 2013 | 07:26 PM
  #12  
timd38's Avatar
timd38
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Default

The part I find interesting is that 05 diffs are troublesome, but most of the parts inside interchange with the base 06 and newer, and C5s.
Reply
Old Nov 17, 2013 | 07:32 PM
  #13  
ez2spd's Avatar
ez2spd
Thread Starter
Melting Slicks
Supporting Lifetime
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2007
Posts: 2,014
Likes: 80
From: San Antonio Tx
Default

You can still use z06 output shafts
Reply
Old Nov 18, 2013 | 09:12 AM
  #14  
Justasheet's Avatar
Justasheet
Melting Slicks
 
Joined: Sep 2008
Posts: 2,286
Likes: 4
Default

Originally Posted by timd38
05 diffs tend to be the worst of the bunch. Get a later year C6 or a C5 Z06.
Get a C5 Z06 3 rib diff, add 4:10 gears and PM Stanger383 for the adaptor brace. Then sell your 05 diff as a core. I love mine.
Jeff
Reply
Old Nov 18, 2013 | 11:34 AM
  #15  
irok's Avatar
irok
Safety Car
10 Year Member
 
Joined: May 2011
Posts: 3,807
Likes: 508
From: Oshawa, Ontario
Default Z06's do it to

Originally Posted by saplumr
That was with street tires and no wheel hop! Replaced with RPM Z06 Stage III and now run NT05R tires with no worries.
there was a post of shanefap's new Z06 diff in his car a few days ago pulling the wheels at the track.great pictures! after 4 passes his new ZO6 diff looked identical to your 05 diff. in pieces!now what?buy a ZR1 diff or DSS Ford 9"

Last edited by irok; Nov 18, 2013 at 11:40 AM.
Reply
Old Nov 18, 2013 | 06:13 PM
  #16  
saplumr's Avatar
saplumr
Race Director
Supporting Lifetime
15 Year Member
 
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Default

Originally Posted by irok
there was a post of shanefap's new Z06 diff in his car a few days ago pulling the wheels at the track.great pictures! after 4 passes his new ZO6 diff looked identical to your 05 diff. in pieces!now what?buy a ZR1 diff or DSS Ford 9"
I've seem Pro Mod cars splatter the trans and rear all over the track so nothing is unbreakable but not necessarily common.
Reply
Old Nov 18, 2013 | 06:39 PM
  #17  
ez2spd's Avatar
ez2spd
Thread Starter
Melting Slicks
Supporting Lifetime
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2007
Posts: 2,014
Likes: 80
From: San Antonio Tx
Default

Are y'all swapping them in the garage or have a shop doing the work? I have a 10 ton lift all sorts of pneumatic impacts etc so I'm sure I can knock it out... Again the car won't see track time so in all honesty if the c5z diff is stronger than 05 and a cheaper route than the 06 diff plus conversion ($4,700 from rpm ) I'll look at that route just to avoid the cracked case... If I can milk the 05 case with 4.10 and no track use that's back where I am now just changing the bearings and gears at same time
Reply

Get notified of new replies

To Rear diff rebuild 2005

Old Nov 18, 2013 | 07:33 PM
  #18  
ez2spd's Avatar
ez2spd
Thread Starter
Melting Slicks
Supporting Lifetime
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2007
Posts: 2,014
Likes: 80
From: San Antonio Tx
Default

http://leperformance.com/dtediffbrace.aspx
Reply
Old Nov 18, 2013 | 09:00 PM
  #19  
saplumr's Avatar
saplumr
Race Director
Supporting Lifetime
15 Year Member
 
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Default

Originally Posted by ez2spd
Are y'all swapping them in the garage or have a shop doing the work? I have a 10 ton lift all sorts of pneumatic impacts etc so I'm sure I can knock it out... Again the car won't see track time so in all honesty if the c5z diff is stronger than 05 and a cheaper route than the 06 diff plus conversion ($4,700 from rpm ) I'll look at that route just to avoid the cracked case... If I can milk the 05 case with 4.10 and no track use that's back where I am now just changing the bearings and gears at same time
The C5 diff is definitely cheaper by far but not the best choice. In your case where $$ is a factor it's probably best for you. As far as keeping and doing any upgrade to the 05 diff....bad choice! That brace won't help you. Good luck.
Reply
Old Nov 18, 2013 | 10:29 PM
  #20  
ez2spd's Avatar
ez2spd
Thread Starter
Melting Slicks
Supporting Lifetime
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2007
Posts: 2,014
Likes: 80
From: San Antonio Tx
Default

With that said and much research the rebuild of the 05 is out of the question... Funny how no one out there will warranty the 05 diff if I buy a rebuilt one... Rpm level 2 is my best option as it has z06 output shafts and I can do 4.10... Plus 1800 core
Reply



All times are GMT -4. The time now is 03:36 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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