Gears & Axles Driveshafts | Rearends | Differentials | Gears | 12 Bolt | 9 Inch | Dana

Gear pattern

Thread Tools
 
Search this Thread
 
Old Sep 28, 2025 | 10:22 AM
  #1  
Michael96's Avatar
Thread Starter
Teching In
5 Year Member
 
Joined: Feb 2018
Posts: 4
Likes: 0
Default Gear pattern

So I have a 87 c10 that had 3.73 gears and i wanted to go to 4.11s so I bought some jegs brand gears and proceeded to try to set them up. I could never get what I thought was a acceptable pattern so I got it as close as I could put it together and went and drove it. Needless to say it made way to much noise. So I ripped it apart and changed my pinion depth and put it together and tried again. No go. Anyways long story short i could never get it to run quietly so i sent the gears back and bought a new set of 4.10s from revolution gear and axle. Yesterday I put the gears in and this is the first pattern I come up with. Now before you cook me in the comments I do have some actual gear paste arriving tomorrow. But Prussian blue is all I have for right now.


This is a 8.5 10 bolt rear end. Currently have my backlash set at .004. Pinion depth is the factory shim .028. This a 2cut gear set. And the recomended backlash specs are .004 to .007. Whats do you guys think? Im confused because it looks like the pattern is to deep towards the root yet it also looks like its to high on the tooth. Idk needless to say im alittle frustrated.
Reply
Old Sep 29, 2025 | 05:49 AM
  #2  
JohnnyBs98WS6Rag's Avatar
TECH Addict
Photogenic
Shutterbug
Liked
Community Favorite
iTrader: (1)
 
Joined: Jul 2005
Posts: 2,499
Likes: 369
From: NE Indiana
Default

IMO, the thrust side pattern looks OK, which is most important.
Reply
Old Nov 19, 2025 | 08:19 PM
  #3  
cammednnbs's Avatar
Launching!
5 Year Member
Photogenic
Photoriffic
Liked
iTrader: (2)
 
Joined: Jul 2019
Posts: 202
Likes: 20
Default

That looks close enough to me.
Also aftermarket gears are never as quiet as factory.
Performance gears will always be much more noisy.
Reply
Old Nov 20, 2025 | 05:45 PM
  #4  
Doug G's Avatar
10 Second Club
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2010
Posts: 4,468
Likes: 196
From: Harford Co. Maryland
Default

No Pro, done more than a few...I'm not hating it.
Reply




All times are GMT -5. The time now is 05:32 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 18:13:20


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE