Drivetrain› Differentials and Rear-End Components
Motive Gear
~(1 lbs. 8X2X2)~ SHFT CRS PIN 8 7/8 12 BLT
SKU: M01Z 3931175
Moderate — 2–4 hours
Description
MIA's Description
This pinion shaft is compatible with a broad range of Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models. It is designed as a direct replacement for easy installation and has been performance tested and racing approved.
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 | Motive Gear |
| Part Number | M01Z 3931175 |
Videos
Motive Gear Ring & Pinion Install
Mustang Gear Install: Ford Racing 8.8 Ring & Pinion | 1986-2009
Installing a Ring & Pinion Gear Set | Ford Performance | 1986-2014 Mustang
Helpfull Tip For Pinion Gear Set Up in Differential
GM 8.5 10 bolt gear setup and final assembly
How To Read A Differential Gear Pattern: A Beginner's Guide. ( Gear Tooth Contact Pattern )
Noisy Gears Update - New Ring & Pinion
Truck Pinion and Gear ring replace || The Sound is The Differential Gears || Gear Repairing
How To Install Ring And Pinion Gears
No BS GM 8.5/8.6 10 Bolt Ring and pinion gear install axle setup
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