Select the year of your Ford E-250:

Yukon Gear & Axle YGLF10.25-35 Grizzly Locker
If you're serious about off-roading or just want to enhance your vehicle's traction capabilities, the Yukon Gear & Axle YGLF10.25-35 Grizzly Locker is a top-notch choice. Designed with durability and performance in mind, this mechanical positive-locking differential is perfect for rock crawling, trail running, and even drag racing.
Key Features:
- Compatible with Ford 10.25" and 10.5" differentials
- 35 spline for robust performance
- Made with 8620 steel internals, ensuring added strength
- Patented design minimizes common locker failures
- Assembled in the USA for quality assurance
Specifications:
- Axle Shaft Spline Quantity: 35
- Cover Bolt Quantity: 12
- Material: High-quality Steel
- Type: Locking Differential
Why Choose the Grizzly Locker?
The Grizzly Locker sets itself apart with its advanced gear tooth design, which allows for 100% power transfer to both tires while still enabling smooth disengagement during turns. This feature is particularly appreciated by off-road enthusiasts who navigate tight corners without sacrificing traction.
Many users have shared their experiences after installing the Grizzly Locker. One customer noted, "I took my truck on a rugged trail after installing the Grizzly Locker, and the traction was incredible. I felt more in control than ever before." Another user mentioned, "Installation was straightforward, and the performance boost was immediately noticeable. It handles turns like a champ!"
Vehicle Fitment:
This locker is specifically designed for the following Ford models:
- Ford E-250 (1991-2014)
- Ford E-350 (1991-1998 & 2000-2015)
- Ford Excursion (2000-2005)
- Ford F-150 (2000-2013)
- Ford F-250 (1985-2009)
- Ford F-250 Super Duty (2010-2015)
- Ford F-350 (1985-1997 & 1999-2015)
With its robust construction and innovative design, the Yukon Gear & Axle YGLF10.25-35 Grizzly Locker is an essential upgrade for anyone looking to enhance their vehicle’s off-road performance. Whether you're tackling tough trails or just want to improve your vehicle's handling, this locker is built to deliver.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Make Vehicle | Model | Year |
---|---|---|
1991-2014 Ford E-250 |
E-250 | 1991-2014 |
1991-1998, 2000-2015 Ford E-350 |
E-350 | 1991-1998, 2000-2015 |
2000-2005 Ford Excursion |
Excursion | 2000-2005 |
2000-2013 Ford F-150 |
F-150 | 2000-2013 |
1985-2009 Ford F-250 |
F-250 | 1985-2009 |
2010-2015 Ford F-250 Super Duty |
F-250 Super Duty | 2010-2015 |
1985-1997, 1999-2015 Ford F-350 |
F-350 | 1985-1997, 1999-2015 |
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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