Select the year of your Ford Expedition:

If you’re diving into a re-gear project, the Yukon Gear Kit is where it’s at. I’ve used these kits before, and honestly, they make the whole process a lot smoother. You get everything you need for both the front and rear differentials in one package—no more scrambling to find parts. Each kit comes with high-performance ring and pinion gear sets that Yukon is known for, plus their Master Overhaul Kits, all under a single part number. It’s a pretty neat setup.
Now, let’s talk quality. Yukon really knows their stuff. Their engineers have put in the work with advanced heat-treating techniques and some seriously rigorous testing processes. This means you’re getting gears that not only perform well but are built to last. The surface finish and structure meet some pretty high standards, so you can count on them to hold up under pressure.
What’s in the kit? Well, you’ve got your gears, bearings, and all those little bits that make a big difference when you're rebuilding your differential. And the ratios? They range from 3.73 to 5.38, which is perfect if you’re thinking about upsizing your tires, boosting towing capacity, or just replacing some worn-out gears. These kits are designed to save you time and money—everything you need in one click, which is a lifesaver.
Features:
- Works for applications with a 10 Bolt Rear Cover and 10 Bolt Ring Gear.
- The inner pinion bearing has a solid 3.250" outside diameter—just the right fit.
- Pro Kits are top-notch, featuring premium components and come with a killer warranty.
- Each Pro Kit includes Yukon’s own ring and pinion sets, along with high-quality Timken bearings and all the necessary small parts to get you back on the road quickly.
- Axle bearings and seals are included, so you’re not left scrambling for those.
- You also get the Yukon Dura Grip Clutch Style Limited Slip (LSD), which is fully rebuildable—great for those off-road adventures.
- The ring gear diameter is a solid 8.8", ensuring you’ve got the strength where it counts.
- Yukon Pro Kits are all about convenience, giving you everything you need in one package.
- This specific kit features a 3.73 Ring & Pinion Gear Set, perfect for a balance of power and efficiency.
Products Fitment:
- Ford Expedition 1997-2002
- Ford F-150 2004-2010
So, if you're looking to upgrade or fix up your differential, this Yukon Gear Kit is a solid choice. It’s got the quality, the convenience, and the performance you need to get back out there on the road—or off it.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Make Vehicle | Model | Year |
---|---|---|
1997-2002 Ford Expedition |
Expedition | 1997-2002 |
2004-2010 Ford F-150 |
F-150 | 2004-2010 |
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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