Yukon Gear Grizzly Locker For Ford 9in w/ 31 Spline Axles / Racing Design

SKU: YUKYGLF9-31-RACE

Differential Carriers

YUK Grizzly Lockers...

Yukon Gear & Axle

Yukon Gear Grizzly Locker For Ford 9in w/ 31 Spline Axles / Racing Design

SKU: YUKYGLF9-31-RACE

Differential Carriers

YUK Grizzly Lockers...

Limited Availability from MFR Limited stock available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical orders of this part. This item is not held in our own warehouse, and availability and release timing may vary depending on manufacturer stock movements and processing at the time of ordering.

We accept

Description

IMPORTANT NOTICE: This is a race type locker that must be used with a case that has 3.250 in. carrier bearings. See the "Required Parts" tab for appropriate bearings and races, 2 of each are required for installation. 8620 case and forged internals.

The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns.

Product Overview

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 thatâ€™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 Lockerâ€™s larger teeth also resist breakage caused by shock-loading or catastrophic axle failure. Itâ€™s a serious piece of mechanical engineering for serious driving conditions.

Features and Benefits

Fits Ford 9 in. w/31 Spline Axles
Aggressive design for racing applications only
Fits Ford 9" with 31 spline axles
Patented internal design reduces common locker failures
8620 internals for added strength
Assembled in the USA

Product Details

AAP Selling Package Quantity UOM:	EA
AAP_UDA_12:	EA
AAP_UDA_22:	1
Axle Shaft Spline Quantity:	31
Axle Type:	Ford 9 inch
California Proposition 65:	Not Applicable
Cover Bolt Quantity:	0
Description:	Yukon Grizzly Locker for Ford 9in. with 31 spline axles; racing design.
Material:	Steel
Part Number:	yukYGLF9-31-RACE
Title:	Yukon Grizzly Locker for Ford 9" with 31 spline axles, racing design.
Type:	Locking
WARNING CA Proposition 65 Required:	No
WARNING CA Proposition 65:	No

Application Summary

FORD 9" 31spl 3.250" brg AGGRSVE GRIZZLY LOCKER (RACE or OFF ROAD use)

Part Type

Differential Carrier

Data: v4.2 - Upd: 2026-10-13 20:47:50

Features

8620 internals for added strength
Aggressive design for racing applications only
Assembled in the USA
Fits Ford 9 in. w/31 Spline Axles
Fits Ford 9" with 31 spline axles
Patented internal design reduces common locker failures

Specifications

Product Attributes - Brand: Yukon Gear & Axle
Product Attributes - Manufacturer's Part Number: YGLF9-31-RACE
Product Attributes - Part Type: Differential Carriers
Product Attributes - Product Line: Yukon Gear & Axle Grizzly Lockers
Product Attributes - UPC: 883584280101
Product Attributes - Differential Case Design Type: Ford 9 in.
Product Attributes - Remanufactured: No
Product Attributes - Aftermarket Carrier Style: Mechanical locker
Product Attributes - Axle Shaft Spline Quantity: 31
Product Attributes - Manufacturer of Axle: Ford
Product Attributes - Carrier Material: Chromium alloy steel
Product Attributes - Carrier Bearings Included: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: This is a race type locker that must be used with a case that has 3.250 in. carrier bearings. See the "Required Parts" tab for appropriate bearings and races, 2 of each are required for installation. 8620 case and forged internals.

Reference Information

Brand Name/s	Yukon Gear & Axle
StreetFX SKU	yukYGLF9-31-RACE
SFX Item ID	4489484
Supplier Item Code	4489484
Manufacturer SKU	YGLF9-31-RACE
Manufacturer UPC	883584280101
Alternative References	yga-28010, 9in