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

pinion shims

Thread Tools
 
Search this Thread
 
Old Apr 18, 2008 | 02:47 PM
  #1  
tpjb57's Avatar
tpjb57
Thread Starter
Advanced
 
Joined: Dec 2006
Posts: 72
Likes: 0
From: mobile alabama
Default pinion shims

when I changed my front diff seal I inspected the bearing, in the order I took it apart was the nut, washer, yoke,seal,shim,bearing, and several thin shims. 4 to be exact. one was half missing. the local clutch store looked up parts and keeps ordering the wrong shims. Anybody know where I can just get the shim kit?
Tom
Reply
Old Apr 18, 2008 | 03:06 PM
  #2  
Van Steel's Avatar
Van Steel
Premium Supporting Vendor
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: May 2000
Posts: 4,312
Likes: 70
From: Clearwater FL
Default

see if there is a differential shop in your area, they should have the pinion shims
Reply
Old Apr 18, 2008 | 03:33 PM
  #3  
Binnie77's Avatar
Binnie77
Drifting
20 Year Member
 
Joined: Jan 2001
Posts: 1,841
Likes: 3
From: Halifax, NS, Canada
Default

That is an interesting place to find shims. Usually the shims are back of the inner bearing, are they not?????
Reply
Old Apr 18, 2008 | 03:53 PM
  #4  
AzMotorhead's Avatar
AzMotorhead
Limping across the line
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2002
Posts: 5,299
Likes: 109
From: Peoria Az
Default

Assuming this is a stock rear diff, There aren't any shims to be replaced if your changing the pinion seal.
The only way to add or remove shims from under the pinion head is to pull the pinion from the case and pull the rear bearing from the pinion.
The only things that are able to come out the front is in order.
Nut-Washer-front bearing(bearing only not the outer race)
If the outer race comes out then you could get the crush sleeve out,but the outer race should be a press fit into the case.
Reply
Old Apr 18, 2008 | 06:20 PM
  #5  
Retro78's Avatar
Retro78
Drifting
15 Year Member
 
Joined: Oct 2004
Posts: 1,259
Likes: 7
From: Ontario
Default

get them from Gary ... GTR1999
Reply
Old Apr 19, 2008 | 01:35 PM
  #6  
stinger12's Avatar
stinger12
Safety Car
15 Year Member
 
Joined: Oct 2006
Posts: 3,930
Likes: 15
From: Calgary Alberta
Default

I think bubba might have gotten into your diff...there shouldn't be any shims where the crush sleeve is. the only place you should find shims is behind the large pinion bearing on the inside of the housing and the posi carrier shims - you can't take either of them out without disassembling the entire unit. Please post pics and show us where you found them.
Reply
Old Apr 20, 2008 | 01:22 AM
  #7  
tracdogg2's Avatar
tracdogg2
Drifting
 
Joined: Jul 2002
Posts: 1,995
Likes: 110
From: Garland Texas
Default

You need the preload shims, not the pinion shims, for the Dana 44. If you can't find any, pm me. I need to know the exact thickness.
Mike
Reply
Old Apr 20, 2008 | 01:41 AM
  #8  
stinger12's Avatar
stinger12
Safety Car
15 Year Member
 
Joined: Oct 2006
Posts: 3,930
Likes: 15
From: Calgary Alberta
Default

Forgot to check what year vette you have - forget my previous post. I thought you had an iron diff, but it looks like you have a dana aluminum unit. Listen to tracdogg2
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 Apr 20, 2008 | 07:01 AM
  #9  
tpjb57's Avatar
tpjb57
Thread Starter
Advanced
 
Joined: Dec 2006
Posts: 72
Likes: 0
From: mobile alabama
Default

1981, after removing the nut, then the yoke then removed the seal "it was leaking" then there was a shim/washer then the bearing then....4 very thin shims. seems like everyone I talk to tells me something different. the old timer transmission guy told me not all had crush sleeve. I have not removed the gears. while it is all out you can pull the pinion forward just a bit so the ring gear spins smoothly. there was no wear pattern on the gears after 26 years.
Tom
Reply
Old Apr 20, 2008 | 07:29 AM
  #10  
Joe45's Avatar
Joe45
Instructor
 
Joined: Apr 2006
Posts: 232
Likes: 0
From: Henrietta New York
Default

Need to replace my 81 pinion seal as well. What is the process? Do you need to take a torque reading (spinning the yolk) before taking it apart to get a number to shoot for after installing the new seal and tightening down the nut? Any feedback before I begin would be appreciated.
Reply

Get notified of new replies

To pinion shims





All times are GMT -4. The time now is 01:39 PM.

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