Drivetrain› Differentials and Rear-End Components
Yukon Gear & Axle
Yukon Gear Grizzly Locker For GM 10.5in 14T Differential 40 Spline 4.10-Down Ratio
SKU: Y001 YGLGM14T-3-40
Moderate — 2–4 hours
Description
Part #: YGLGM14T-3-40
Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and performance. The Yukon Grizzly Locker is a mechanical positive-locking differential that's engineered for rock crawling, serious trail running, off-road racing, and drag racing. The unit provides 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly Locker is a patented design that features innovations that make it tougher than the competition. Its inner clutch teeth have a larger radius at the base, which offers up to 350% greater strength versus back-cut designs. The Grizzly Locker's larger teeth also resist breakage caused by shock-loading or catastrophic axle failure. It's a serious piece of mechanical engineering for serious driving conditions.
Features:
- GM 10.5" 14T differential
- 40 spline
- 4.10-down ratio
- Installs into a bare factory open case
- Does NOT use the factory thrust washers
- Patented internal design reduces common locker failures
- 8620 internals for added strength
The Yukon Grizzly Locker is a mechanical/automatic locking diff that s engineered for rock crawling | serious trail running | off-road racing | and drag racing. It s patented design features innovations that make it tougher than other lockers.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
MIA's Description
Fitment
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Specifications
| Brand | Yukon Gear & Axle |
| Part Number | Y001 YGLGM14T-3-40 |
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.
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