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If you’re serious about off-roading, the Yukon Grizzly Locker is a game changer. This isn’t just any locker; it’s a mechanical positive-locking differential that’s built to tackle everything from rock crawling to high-speed off-road racing. I’ve put mine through the wringer, and let me tell you, it delivers 100% power to both tires when you need it most, yet it still lets you turn smoothly when you're navigating tight corners.
What really sets the Grizzly Locker apart is its rugged design. The patented internal structure is engineered to handle the kind of abuse that would leave lesser lockers in the dust. The inner clutch teeth have a larger radius at the base, which means they’re up to 350% stronger than those back-cut designs you might find elsewhere. This added strength really shines when you hit those unexpected bumps or rough terrain—no more worrying about breakage from shock-loading or catastrophic axle failures.
Another bonus? It’s assembled right here in the USA, so you know you’re getting quality craftsmanship. The 8620 internals give it that extra durability, making it a reliable choice for anyone who pushes their vehicle to the limit.
Features:
- Designed to fit Toyota V6 rear axles.
- Innovative internal design that minimizes common locker failures.
- Built with 8620 internals for enhanced strength.
- Assembled in the USA, ensuring top-notch quality.
Specifications:
- Axle Shaft Spline Quantity: 30
- Cover Bolt Quantity: 0
- Material: Steel
- Type: Locking
Products Fitment:
- Lexus GX470 (2003-2009)
- Toyota 4Runner (1985-2009)
- Toyota FJ Cruiser (2007-2009)
- Toyota Pickup (1985-1995)
If you’re looking to upgrade your off-road setup, the Yukon Grizzly Locker is definitely worth considering. It’s tough, reliable, and ready to take on whatever you throw at it.
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| Lexus GX470 | 2003-2009 | Base |
| Toyota 4Runner | 1985-2009 | SR5 |
| Toyota 4Runner | 1985-1989 | DLX |
| Toyota 4Runner | 1996-2001 | Base |
| Toyota 4Runner | 1996-2009 | Limited |
| Toyota 4Runner | 2003-2009 | Sport |
| Toyota FJ Cruiser | 2007-2009 | Base |
| Toyota FJ Cruiser | 2007 | TRD Special Edition |
| Toyota FJ Cruiser | 2008-2009 | Premium |
| Toyota FJ Cruiser | 2008 | Trail Teams Special Edition |
| Toyota FJ Cruiser | 2009 | Core |
| Toyota Pickup | 1985-1995 | SR5 |
| Toyota Pickup | 1985-1995 | Base |
| Toyota Pickup | 1985 | DLX Turbo |
| Toyota Pickup | 1985 | RN60 |
| Toyota Pickup | 1985-1995 | DLX |
| Toyota Pickup | 1985-1988 | SR5 Turbo |
| Toyota Pickup | 1986 | LN76 |
| Toyota Pickup | 1986-1987 | LN55 DLX |
| Toyota Pickup | 1986-1987 | RN63 |
| Toyota Pickup | 1986-1987 | Base Turbo |
| Toyota Pickup | 1987 | LN67 |
| Toyota Pickup | 1993 | RN02 |
Yukon's mission is to build quality parts that exceed your expectations. We achieve this through state-of-the-art product design and an in-house engineering team. Our parts are then produced by leaders in OEM manufacturing and endure rigorous testing.
Yukon Gear & Axle ("Yukon") warrants the original retail purchaser that all Yukon products will be free from defects in materials and workmanship for the periods shown herein. Yukon makes no other warranty of any kind, express or implied. All other warranties, including but not limited to an implied warranty of merchantability or fitness for a particular purpose, are excluded. This warranty is offered provided that the Yukon product has been installed and maintained in accordance with Yukon instructions, and that it has not been subject to modification, accident, abnormal use or misuse. At Yukon's discretion, this warranty may be voided if installation of Yukon product(s) occurs on vehicles with tires that exceed Yukon Maximum Recommended Tire Size.
Upon notification of a warranty claim, Yukon shall investigate the claim of defect, and, in the event of a verified defect, shall, at their sole choice, either repair the defective product, replace it, or refund the purchase price.
This warranty does not cover, and Yukon shall not be liable for, incidental or consequential damages, including loss of time, road service charges, labor charges, inconvenience, loss of vehicle use, loss of revenues, or loss or damage to personal property (including loss or damage to vehicle parts due to the failure of the Yukon product)*. In addition, this warranty does not cover, and Yukon shall not be liable for, any undertaking, representation, or agreements made by dealers or other third parties selling Yukon Gear & Axle products, except where such agreements are within the provisions of this Warranty statement. Also, this warranty does not cover damage to the axle caused by or facilitated by failure of a non-Yukon component.
This agreement offers you specific legal rights. You may also have other rights which vary from state to state.
YUKON WARRANTY BY PRODUCT
Spool
Upon notification of a warranty claim, Yukon shall investigate the claim of defect, and, in the event of a verified defect, shall, at their sole choice, either repair the defective product, replace it, or refund the purchase price.
This warranty does not cover, and Yukon shall not be liable for, incidental or consequential damages, including loss of time, road service charges, labor charges, inconvenience, loss of vehicle use, loss of revenues, or loss or damage to personal property (including loss or damage to vehicle parts due to the failure of the Yukon product)*. In addition, this warranty does not cover, and Yukon shall not be liable for, any undertaking, representation, or agreements made by dealers or other third parties selling Yukon Gear & Axle products, except where such agreements are within the provisions of this Warranty statement. Also, this warranty does not cover damage to the axle caused by or facilitated by failure of a non-Yukon component.
This agreement offers you specific legal rights. You may also have other rights which vary from state to state.
YUKON WARRANTY BY PRODUCT
Spool
- Length:As long as original purchaser owns vehicle in which Spool is originally installed
- Notes:It is normal for Spools to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for Spool to function properly without premature wear.
- Length:As long as original purchaser owns vehicle in which Super Joint is originally installed
- Notes:Warranty coverage is for breakage of cross section or caps only. Failure by wear or galling is not covered.
- Length:One (1) Year
- Notes:Covers parts for one year against manufacturers defects.
- Length:Ten (10) Years
- Notes:Covers parts for ten years against manufacturing defects.
- Length:Ten (10) Years
- Notes:Covers parts for ten years against manufacturing defects.
- Length:Limited Lifetime
- Notes:Limited Lifetime warranty covering manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
- Length:Limited Lifetime
- Notes:Limited Lifetime warranty covering manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
- Length:One (1) Year
- Notes:Warrantied against manufacturing defects for one (1) year.
- Length:One (1) Year
- Notes:Exclusions apply, does not cover premature clutch wear or abuse. It is normal for Positraction differentials to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for differential to function properly without premature wear. Limited slip additive or appropriate friction modifier must be used with oil to reduce Positraction chatter.
- Length:Six (6) Years
- Notes:All Zip Lockers come with a six (6) year warranty against manufacturer defect, including any collaterally damaged parts and associated labor, up to $2,000*, for the first two (2) years. Collaterally damaged parts must be submitted for inspection. Receipts for parts and associated labor must be submitted as well. Only claims deemed reasonable by Yukon Gear & Axle will be accepted. Offer may be discontinued without advance notice.
- Length:One (1) Year
- Notes:Covers the replacement of the unit and any collaterally damaged parts and associated labor, up to $2,000. Collaterally damaged parts must be submitted for inspection. Receipts for parts and associated labor must be submitted as well. Only claims deemed reasonable by Yukon Gear & Axle will be accepted. Offer may be discontinued without advance notice.
- Length:One (1) Year
- Notes:Covers parts for one year against manufacturing defects.
- Length:One (1) Year
- Notes:Covers parts for one year against manufacturing defects.
- Length:One (1) Year
- Notes:Covers parts for one year against manufacturing defects.
- Length:One (1) Year
- Notes:Includes BK, MK, PK, and YK. Covers parts for one year against manufacturing defects.
- Length:One (1) Year
- Notes:One year against manufacturing defects. Exclusions apply, does not cover clutch wear in limited slip differentials.
- Length:Limited Lifetime
- Notes:Limited Lifetime warranty covering manufacturing defects and breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace the part or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
- Length:Limited Lifetime
- Notes:Limited Lifetime warranty covering manufacturing defects and breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace the part or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations
- Length:One (1) Year
- Notes:Warrantied against manufacturing defects for one (1) year. Longer warranty is available through purchase of a Y.E.S. plan.
Installation Instructions
Click to view the Installation Instructions here
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