Select the year of your Ford Excursion:

If you’re diving into a re-gear project, let me tell you, Yukon Gear Kits are the way to go. They’ve bundled everything you need for both front and rear differential work into one neat package. No more hunting around for parts; it’s all here—ring and pinion gear sets plus the Yukon Master Overhaul Kits, all under one part number. Pretty convenient, right?
Now, if you’re serious about performance, you’ll appreciate that Yukon’s high-performance gear sets are widely regarded as top-notch in the automotive world. These aren’t just any gears; they’re crafted with cutting-edge design techniques and advanced heat-treating processes that ensure they can handle whatever you throw at them. Plus, they undergo rigorous quality testing to meet strict standards. You’re getting something built to last.
This kit comes packed with everything you need to fully rebuild your differential, including gears, bearings, and all those little bits that can be a hassle to track down separately. You can choose from gear ratios ranging from 3.73 to 5.38, which means whether you’re looking to upsize your tires, boost your towing capacity, or just replace those worn-out gears, you’ll find a setup that fits your needs.
One of the standout features is the Yukon Dura Grip Clutch Style Limited Slip (LSD) included in the install kit. It’s fully rebuildable, so you’re not just buying a one-time fix. And let’s not forget the quality of the components; the Pro Kits come with premium Yukon ring and pinion sets, Timken bearings, and all necessary small parts. You’ll be back on the road in no time.
Oh, and if you’re worried about longevity, Yukon’s got your back with their Y.E.S. Plan. This lifetime warranty covers your gear set for as long as you own your vehicle. That’s peace of mind right there.
Features:
- Includes NP 504493/ NP 949481 Inner Pinion Bearing & Race
- Designed for applications with a 12 Bolt Rear Cover and 12 Bolt Ring Gear
- Pro Kits feature top-quality components backed by an unbeatable warranty
- Comes with premium Yukon ring and pinion sets and a Master Install kit with high-quality Timken bearings
- Gear and Install Kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD); fully rebuildable
- Ring Gear Diameter is 10.5"
- Yukon Pro Kits offer a complete differential repair & performance solution in one package
- This particular kit features a 3.73 Ring & Pinion Gear Set
Products Fitment:
- Ford Excursion 2000-2005
- Ford F-250 1999-2007
- Ford F-350 1999-2007
So, if you’re ready to take your ride to the next level, this Yukon Gear Differential Gear Install Kit (YGK2139) is definitely worth considering.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Make Vehicle | Model | Year |
---|---|---|
2000-2005 Ford Excursion |
Excursion | 2000-2005 |
1999-2007 Ford F-250 |
F-250 | 1999-2007 |
1999-2007 Ford F-350 |
F-350 | 1999-2007 |
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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