Drivetrain› Differentials and Rear-End Components
Richmond Gear/Motive Gear
Differential Ring and Pinion
SKU: R01O GM82C373
Moderate — 2–4 hours
Description
Installation requires a 3.08 and numerically higher ratio carrier. The set is backed by a 1-year or 50,000-mile warranty.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Richmond Gear/Motive Gear |
| Part Number | R01O GM82C373 |
Videos
Visiting Midwest Truck - Richmond Gear - Motive Gear
High Performance Manual Transmissions at the 2014 PRI Show
Richmond Gear 4+1 5 Speed Shift Improvements - Part II - W/ Paul Cangialosi
GL4 and GL5 Oil - Transmission Lubrication Oils Explained
How to Rebuild a Muncie 4 Speed - Tip # 2
How To Rebuild A T5 World Class Transmission - Gforce Gears PT-1
How to Rebuild a Muncie 4 Speed - Tip # 1
How to Rebuild a Muncie 4 Speed Synchronizer Basics
How To Disassemble a Muncie 4 speed Mainshaft - Housing Repair
How to Rebuild a Muncie 4 Speed - Tip # 3
No BS GM 8.5/8.6 10 Bolt Ring and pinion gear install axle setup
How To: Set Pinion Depth, Backlash, and Read Gear Pattern on GM 10 Bolt
GM 8.5 10 bolt gear setup and final assembly
how to re-gear a GM 8.6" 10-bolt axle
ALL GEARED UP - Installing 3.08 Rear Gears + POSITRACTION - UTX
Silverado Rear Gears Before and After (3.42 vs 4.10)
Noisy Gears Update - New Ring & Pinion
Gear Ratios 101: What's better? 3.73 or 4.10? | A Simple Breakdown w/ Driving Examples
Motive Gear Ring & Pinion Install
GM 12-Bolt rear diff UPGRADE: Positraction and gear swap | Hagerty DIY
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy