Drivetrain› Differentials and Rear-End Components
Motive Gear
402 = DETROIT LOCKER/TRUETRAC
SKU: M01Z 912A686
Moderate — 2–4 hours
Description
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 912A686 |
Videos
GM 10 Bolt 8.5" Posi Install "How To" Chevy C10 Truck - Eaton Truetrac
how to re-gear a GM 8.6" 10-bolt axle
Eaton Detroit Truetrac Limited-Slip Differential
Watch before you buy Eaton Detroit TrueTrac differential! How do they work?
EATON DETROIT TRUE-TRAC LIMITED SLIP DIFFERENTIAL UPGRADE
Exploded View - Inside the Eaton TrueTrac Differential
Motive Gear Ring & Pinion Install
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