Yukon Gear Grizzly Locker / Dana 30 / 30 Spline / 3.73+

SKU: YUKYGLD30-4-30

Differential Carriers

YUK Grizzly Lockers

Yukon Gear & Axle

Yukon Gear Grizzly Locker / Dana 30 / 30 Spline / 3.73+

SKU: YUKYGLD30-4-30

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.

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Description

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 Dana Spicer 30 w/30 Spline Axles
Assembled in the USA
Fits Dana Spicer 30 with 30 spline axles
3.73 and up ratio only
Patented internal design reduces common locker failures
8620 internals for added strength

Product Details

AAP Selling Package Quantity UOM:	EA
AAP_UDA_12:	EA
AAP_UDA_22:	1
Axle Shaft Spline Quantity:	30
Axle Type:	Dana 30 Rear
California Proposition 65:	Not Applicable
Cover Bolt Quantity:	0
Description:	Yukon Grizzly locker; Dana 30; 30 spline; 3.73/up.
Material:	Steel
Part Number:	yukYGLD30-4-30
Title:	Yukon Grizzly locker, Dana 30, 30 spline, 3.73 & up.
Type:	Locking
WARNING CA Proposition 65 Required:	No
WARNING CA Proposition 65:	No

Application Summary

D30 30spl 3.73&up GRIZZLY LOCKER,1.783"jrnl ( uses LM102949/11)

Part Type

Differential Carrier

Data: v4.2 - Upd: 2026-10-11 08:24:28

Features

3.73 and up ratio only
8620 internals for added strength
Assembled in the USA
Fits Dana Spicer 30 w/30 Spline Axles
Fits Dana Spicer 30 with 30 spline axles
Patented internal design reduces common locker failures

Specifications

Product Attributes - Brand: Yukon Gear & Axle
Product Attributes - Manufacturer's Part Number: YGLD30-4-30
Product Attributes - Part Type: Differential Carriers
Product Attributes - Product Line: Yukon Gear & Axle Grizzly Lockers
Product Attributes - UPC: 883584280293
Product Attributes - Differential Case Design Type: Dana 30
Product Attributes - Remanufactured: No
Product Attributes - Aftermarket Carrier Style: Mechanical locker
Product Attributes - Cover Bolts: 10
Product Attributes - Axle Shaft Spline Quantity: 30
Product Attributes - Manufacturer of Axle: Dana
Product Attributes - Carrier Material: Chromium alloy steel
Product Attributes - Carrier Bearings Included: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Fits 3.73 and numerically higher ratios.

Reference Information

Brand Name/s	Yukon Gear & Axle
StreetFX SKU	yukYGLD30-4-30
SFX Item ID	4489465
Supplier Item Code	4489465
Manufacturer SKU	YGLD30-4-30
Manufacturer UPC	883584280293
Alternative References	yga-28029