Yukon YGLTLC-30 Grizzly Locker for 1969-1997 Toyota Land Cruiser 9.5" 30 Spline

Vehicle Fitment

• 1969-1984 Toyota Land Cruiser FJ40 (4WD, Toyota 9.5" Full-Float Front Axle, 30-Spline - Front: 1969-1990)
• 1963-1984 Toyota Land Cruiser FJ45 Pickup (4WD, Toyota 9.5" Full-Float Front Axle, 30-Spline - Front: 1969-1990)
• 1968-1980 Toyota Land Cruiser FJ55 Wagon (4WD, Toyota 9.5" Full-Float Rear Axle, 30-Spline - Rear: 1969-1997)
• 1981-1987 Toyota Land Cruiser FJ60 / BJ60 / HJ60 / HJ61 (4WD, Toyota 9.5" Front and Rear, 30-Spline)
• 1988-1990 Toyota Land Cruiser FJ62 (4WD, Toyota 9.5" Front and Rear, 30-Spline)
• 1990-1992 Toyota Land Cruiser FJ80 (4WD, Toyota 9.5" Front and Rear, 30-Spline)
• 1990-1997 Toyota Land Cruiser HDJ80 / HDJ81 (4WD, Toyota 9.5" Rear, 30-Spline)
• 1990-1997 Toyota Land Cruiser HZJ80 / HZJ81 (4WD, Toyota 9.5" Rear, 30-Spline)
• 1993-1997 Toyota Land Cruiser FZJ80 / FZJ81 (4WD, Toyota 9.5" Rear, 30-Spline)
• 1984-1998 Toyota Land Cruiser BJ70 / HJ70 / BJ75 / HJ75 (4WD, Toyota 9.5" Rear, 30-Spline)

Fitment Notes

• Front axle fitment: 1969-1990 Toyota Land Cruiser 40 and 60 Series only
• Rear axle fitment: 1969-1997 Toyota Land Cruiser with Toyota 9.5" full-float and semi-float rear axles
• Fits Toyota 9.5" Landcruiser differential with 30-spline axles only - does NOT fit earlier 27-spline axle applications
• Bearing journals: 45mm - uses TK LM603049 / LM603014 bearings
• On rear C-clip applications, the RH bearing cap must be removed to install and remove the cross-pin bolt
• Gear ratios 4.56 and higher may require grinding of one ring gear tooth for cross-pin installation and removal
• Does NOT fit Toyota V6 (3VZ-E) rear differentials - see Yukon YGLTV6-30 for that application
• Does NOT fit Toyota 8" 4-cylinder rear differentials - see Yukon YGLT8-30

Features

• Mechanical positive-locking differential providing 100% power to both tires under load
• Automatically disengages during turns to allow wheel speed differentiation on pavement
• Patented inner clutch tooth design with larger base radius - up to 350% stronger than back-cut designs
• Forged case construction and 8620 chromoly steel internals for maximum shock-load resistance
• Larger tooth profile resists breakage caused by sudden shock loading or catastrophic axle failure
• Assembled in the USA for consistent quality control and fitment accuracy
• Backed by Yukon's Y.E.S. (Extended Service) Plan - no-questions-asked replacement warranty
• Engineered for rock crawling, trail running, off-road racing, and drag racing applications

Specifications

• Application: Toyota 9.5" Land Cruiser Full-Float and Semi-Float Differential
• Axle Spline Count: 30-spline
• Bearing Journal Size: 45mm
• Compatible Bearings: TK LM603049 / LM603014
• Case Material: Forged steel
• Internals: 8620 chromoly steel
• Assembly: USA
• Position: Front (1969-1990) / Rear (1969-1997)
• Weight: Approximately 20.4 lbs
• Warranty: Yukon Y.E.S. Extended Service Plan eligible

Included Components

• 1x Yukon Grizzly Locker unit (fully assembled)
• 1x Cross-pin bolt and hardware
• 1x Installation instruction sheet

Product Description

The Yukon Gear & Axle YGLTLC-30 Grizzly Locker is a full mechanical positive-locking differential engineered for the Toyota 9.5" Land Cruiser axle with 30-spline shafts, covering a broad range of 40 Series, 60 Series, and 80 Series Land Cruisers. Built from a forged steel case with 8620 chromoly internals, the Grizzly Locker is designed to withstand the extreme punishment of rock crawling, serious trail running, and off-road competition - applications where factory open and limited-slip differentials regularly fail. Under load it delivers 100% power to both tires simultaneously, maximizing traction in the toughest conditions. During turns, the locker automatically disengages to allow wheel speed differentiation, making it streetable in everyday driving.

What separates the Grizzly Locker from the competition is its patented tooth geometry. The inner clutch teeth feature a larger radius at the base compared to conventional back-cut designs - providing up to 350% greater strength at the tooth root where most lockers fracture under shock loading or axle failure events. This design also dramatically improves resistance to the kind of sudden impact loads that occur during hard landings, aggressive trail use, or drag racing launches, making the YGLTLC-30 one of the most mechanically robust locker designs available for the Land Cruiser platform.

The YGLTLC-30 is assembled in the USA and is eligible for Yukon's Y.E.S. (Extended Service) Plan - the industry's most comprehensive no-questions-asked replacement warranty. Important installation notes: on rear C-clip axle configurations, the right-hand bearing cap must be removed during cross-pin installation and removal. On gear ratios of 4.56 and above, light grinding of one ring gear tooth may be required for proper cross-pin clearance. Always verify your axle spline count (30-spline) and differential housing size (9.5") before ordering, and confirm front vs. rear application year compatibility using the fitment table above.