Yukon Dana 60 Grizzly Locker - 30 Spline, 4.10 & Down Ratio
YUKYGLD60-3-30
The Dana 60 Grizzly Locker is a fully mechanical automatic locking differential designed to provide maximum traction for off-road vehicles, rock crawlers, work trucks, tow rigs, drag racers, and high-performance 4x4 applications. When traction demands increase, the Grizzly Locker delivers 100% torque transfer to both axle shafts, helping maintain forward momentum through rocks, mud, snow, sand, and other challenging terrain.
Built around a heavy-duty forged case and 8620 heat-treated internal components, the Grizzly Locker is engineered to withstand severe shock loads generated by large tires, deep gearing, lockers, and high-horsepower applications. This model is designed specifically for Dana 60 differentials using 30 spline axle shafts and 4.10 & numerically lower gear ratios. It is also compatible with thick gear applications where applicable.
Includes:
- Dana 60 Grizzly Locker assembly
- Internal locking mechanism
- Fully assembled carrier unit
Specifications
- Brand: Yukon Gear & Axle
- Part Number: YGLD60-3-30
- Product Type: Automatic mechanical locker
- Application: Dana 60 differential
- Spline Count: 30 spline
- Carrier Break: 4.10 and numerically lower ratios
- Compatible with Thick Gears: Yes
- Internal Material: Heat-treated 8620 alloy steel
- Locking Style: Automatic mechanical locking differential
- Assembly: Fully assembled
- Country of Assembly: USA
- C-Clip Compatible: No
- Quantity: Sold individually
Fitment
|
Year |
Make |
Model |
Differential |
|
1964-1988 |
Chevrolet |
C/K Series, Suburban, G30, V30 |
Dana 60 Front & Rear 30 Spline |
|
1960-2003 |
Dodge |
D/W Series, Ram 2500, Ram 3500, B-Series Vans, Ramcharger |
Dana 60 Front & Rear 30 Spline |
|
1954-2002 |
Ford |
F-100, F-250, F-350, E-Series Vans |
Dana 60 Front & Rear 30 Spline |
|
1967-1987 |
GMC |
C/K Series, Suburban, G35, V3500 |
Dana 60 Front & Rear 30 Spline |
|
1963-1976 |
Jeep |
Wagoneer |
Dana 60 Rear 30 Spline |
|
1966-1970 |
Dodge / Plymouth |
Charger, Dart, Barracuda, GTX, Fury, Road Runner |
Dana 60 Rear 30 Spline |
Fitment Notes
- Fits Dana Spicer 60 differentials with 30 spline axle shafts
- Compatible with 4.10 and numerically lower gear ratios
- Compatible with many thick gear applications
- Not compatible with C-clip axle applications
- Verify spline count, carrier break, and gear ratio before ordering
Tech Insight
1. What is the difference between the Grizzly Locker and a limited-slip differential?
A Grizzly Locker provides 100% power to both wheels when engaged, while a limited-slip differential only transfers a portion of available torque to the tire with traction.
2. Will this fit all Dana 60 axles?
No. This locker is designed specifically for Dana 60 differentials using 30 spline axle shafts and 4.10 & numerically lower carrier breaks.
3. Can I use this locker for rock crawling?
Yes. The Grizzly Locker is one of the most popular automatic lockers for rock crawling because it delivers full traction without requiring air lines, wiring, or driver input.
4. Does this locker require an air compressor or switch?
No. The Grizzly Locker is completely mechanical and operates automatically without electronics, wiring, switches, or compressed air.
5. Can this locker be driven on the street?
Yes. Many Grizzly Lockers are used in street-driven trucks and Jeeps. However, drivers may notice typical automatic locker characteristics during low-speed turns and parking maneuvers.
