Select the year of your American Motors AMX:

Yukon Gear & Axle YG M20-488 Ring and Pinion Gear Set
When it comes to enhancing your vehicle's performance, the Yukon Gear & Axle YG M20-488 is a top choice for those seeking reliability and precision. Designed specifically for the AMC Model 20 differential, this gear set boasts a 4.88 ratio, making it perfect for optimizing traction and power delivery, especially if you’ve upgraded your tires or added more horsepower.
Features
- Fits AMC Model 20
- 8.875" ring gear diameter
- 28 spline pinion
- 8 ring gear bolts
- 4.88 gear ratio
Specifications
- Axle Type: Semi Float
- Gear Ratio: 4.88
- Mounting Hardware Included: No
Customer Feedback
Many users have praised the YG M20-488 for its durability and performance. One customer noted, "After installing these gears, my Jeep has never felt better. The acceleration is fantastic, and I can tackle steep hills with ease!" Another user mentioned, "The installation was straightforward, and the quality of the gears is evident. Highly recommend for anyone with an AMC Model 20!"
Why Choose Yukon?
Yukon Gear & Axle sets the standard in the automotive gear industry. Each gear set undergoes advanced heat-treating techniques and rigorous testing to ensure it meets high-quality standards. Plus, with Yukon’s Y.E.S. Plan, you get a lifetime, no-questions-asked protection plan for your gear set, giving you peace of mind for years to come.
When you're ready to take your ride to the next level, the Yukon Gear & Axle YG M20-488 is ready to deliver performance and reliability that you can trust.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Make Vehicle | Model | Year |
---|---|---|
1968-1970 American Motors AMX |
AMX | 1968-1970 |
1978-1979 American Motors Concord |
Concord | 1978-1979 |
1970-1977 American Motors Hornet |
Hornet | 1970-1977 |
1968-1974 American Motors Javelin |
Javelin | 1968-1974 |
1971-1978 American Motors Matador |
Matador | 1971-1978 |
1975-1980 American Motors Pacer |
Pacer | 1975-1980 |
2002-2004 Hummer H1 |
H1 | 2002-2004 |
1976-1983 Jeep CJ5 |
CJ5 | 1976-1983 |
1976-1986 Jeep CJ7 |
CJ7 | 1976-1986 |
1976-1986 Jeep J10 |
J10 | 1976-1986 |
1981-1986 Jeep Scrambler |
Scrambler | 1981-1986 |
1979-1986 Jeep Wagoneer |
Wagoneer | 1979-1986 |
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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