How To Read A Differential Gear Pattern: A Beginner's Guide. ( Gear Tooth Contact Pattern )

In this video I'm going to show you how to correctly read a differential gear pattern. Reading a differential gear pattern is done by painting gear marking compound on the ring gear and rotating the pinion until the paint on the ring gear is removed by the pinion gear.

You can analyze the mark in the paint to tell you how the ring gear and the pinion gear are meshing with one another. Based on what you see in the gear pattern tells you what adjustments you need to make to the differential.

Here are links to the other 2 parts of this series:
Differential Basics:https://amzn.to/4agE3Ek
Full Differential Rebuild:    • Complete Differential Overhaul: DIY S...  

Links to the tools required to rebuild a differential:
Gear Marking Compound: https://amzn.to/4agE3Ek
Calipers: https://amzn.to/48nlVr7
Dial Indicator: https://amzn.to/3utnAxB
Beam Torque Wrench: https://amzn.to/3UODXzz
Pinion Flange Holding Tool: https://amzn.to/3SZ2NLF
Bearing Splitter: https://amzn.to/4bIN1f2
Bearing/Seal Drivers: https://amzn.to/3uCYrAs
Hot Plate: https://amzn.to/3uuUu0Q
Shim Drivers: https://amzn.to/48j5KLp

Chemicals:
Retaining Compound: https://amzn.to/3SZpbEI
Thread Locker: https://amzn.to/48kF7pl
RTV: https://amzn.to/3OLwaP9
Degreaser: https://amzn.to/3uBzhlG

Parts used in this Ford 8.8 build:
Ford Performance 4.10 Gears: https://amzn.to/49EJrRk
Ford Performance Install Kit: https://amzn.to/3I3hR4w
Torsen T2R Differential: https://amzn.to/3SKyXsQ
Moser 31 spline Axles: https://amzn.to/3I4DYaI
Crush Sleeve Eliminator Kit: https://amzn.to/49AKSAr
My Amazon Store: https://www.amazon.com/shop/repairgeek
Help support the channel, buy using my Amazon links
As an Amazon Associate I earn from qualifying purchases and your cost is exactly the same.

I source all of my service data from the same place that professional shops do. You can as well: https://www.pntrac.com/t/SENKSUZKRktD...

#differential #axle #explained #gears #ford

Questions? Shoot me an email at [email protected]

Chapters:
00:00 Intro
00:10 What is a differential gear pattern?
2:26 How to get a readable gear pattern
4:54 Parts of a ring gear tooth
7:06 Pinion depth adjustments
11:10 Backlash adjustments
15:00 Drive side vs coast side patterns
16:21 My final pattern
17:37 Outro

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