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

Marking rear gears

Thread Tools
 
Search this Thread
 
Old Apr 6, 2014 | 10:08 PM
  #1  
CA-Legal-Vette's Avatar
CA-Legal-Vette
Thread Starter
Race Director
20 Year Member
All Eyes On Me
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 12,696
Likes: 329
From: Scottsdale Arizona
Default Marking rear gears

I picked up a rebuilt rear end from another forum member. It looks to be in great shape but I wanted to check the runout and pattern before installing it. I put marking paste on the ring gear but can't seem to get a visible pattern on the gear. Either the pinion gear is missing ( unlikely ) or I'm doing it wrong.

It occurs to me that I should have something against the ring gear to put some pressure on it to allow the pinion ger to produce an imprint.

Ideas? Obviously, I've never done this before.
Reply
Old Apr 6, 2014 | 10:57 PM
  #2  
TOM B1's Avatar
TOM B1
Burning Brakes
15 Year Member
 
Joined: Oct 2003
Posts: 836
Likes: 26
From: Harrisburg Pa
Default

Mark the gears on the leading edge; the way it turns when moving forward; then turn the pinion the same way and you will see the pattern.
Reply
Old Apr 6, 2014 | 11:23 PM
  #3  
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

I should have something against the ring gear to put some pressure on it to allow the pinion ger to produce an imprint.
The Idea is to put drag on the ring gear simulating a load.
Reply
Old Apr 6, 2014 | 11:47 PM
  #4  
TimAT's Avatar
TimAT
Le Mans Master
15 Year Member
Liked
Loved
 
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
Default

Originally Posted by AzMotorhead
The Idea is to put drag on the ring gear simulating a load.

No load= no pattern. I use a handful of shop rags and just add all the drag on the ring gear I can.
Reply
Old Apr 7, 2014 | 06:06 AM
  #5  
Gordonm's Avatar
Gordonm
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Default

I put a heavy leather glove on and keep pressure on the ring gear with my hand in the glove. Just put a drag on it as you turn the pinion. I actually use a battery powered drill to turn the pinion so you get it to rotate a number of times while keeping pressure on the ring gear.
Reply

Get notified of new replies

To Marking rear gears





All times are GMT -4. The time now is 01:05 AM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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