Select the year of your Ford Bronco:

Yukon Dura Grip Positraction for Ford 8.8 Inch with 31 Spline Axles (Part Number: YDGF8.8-31-1)
If you're looking for a reliable and high-performing limited slip differential, the Yukon Dura Grip is a fantastic choice. Designed specifically for Ford 8.8 inch axles with 31 spline, this unit offers the perfect blend of smooth operation and aggressive traction, making it suitable for a variety of driving conditions.
Features:
- Engineered for 8.8" Ford with 31 Spline Axles
- Compatible with all gear ratios
- Constructed with high-strength 4320 chromoly spider gears for enhanced durability
- Backed by comprehensive product testing and cutting-edge design software
- Equipped with composite clutches for reliable limited slip performance
- Fully rebuildable design, proudly made in the USA
Specifications:
- Assembled: Yes
- Axle Shaft Spline Quantity: 31
- Axle Type: Semi Floating
- Bolt Hole Quantity: 10
- Case Included: Yes
- Differential Brand: Ford
- Gear Ratio: All
- Heat Treated: Yes
- Material: Steel
Customer Feedback:
Many users have praised the Yukon Dura Grip for its reliability and performance. One customer noted, "I installed this on my Ford F-150, and the difference was night and day. The traction it provides is incredible, especially in off-road conditions." Another user remarked, "I appreciate the rebuildable design; it gives me peace of mind knowing I can maintain it over time."
When you need a differential that can handle the demands of both daily driving and more rugged adventures, the Yukon Dura Grip is your go-to solution. With its robust construction and impressive performance, you can drive with confidence, knowing your vehicle is equipped with one of the best in the market.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Make Vehicle | Model | Year |
---|---|---|
1983-1996 Ford Bronco |
Bronco | 1983-1996 |
1992-2011 Ford Crown Victoria |
Crown Victoria | 1992-2011 |
2002-2014 Ford E-150 |
E-150 | 2002-2014 |
1991-2001 Ford E-150 Econoline |
E-150 Econoline | 1991-2001 |
1991-1998 Ford E-250 Econoline |
E-250 Econoline | 1991-1998 |
1997-2014 Ford Expedition |
Expedition | 1997-2014 |
1991-2010 Ford Explorer |
Explorer | 1991-2010 |
1983-2017 Ford F-150 |
F-150 | 1983-2017 |
1978-1983 Ford Fairmont |
Fairmont | 1978-1983 |
1979-1982 Ford Granada |
Granada | 1979-1982 |
1979-1986 Ford LTD |
LTD | 1979-1986 |
1987-1991 Ford LTD Crown Victoria |
LTD Crown Victoria | 1987-1991 |
1979-2014 Ford Mustang |
Mustang | 1979-2014 |
1990-2011 Ford Ranger |
Ranger | 1990-2011 |
1987-1988 Ford Thunderbird |
Thunderbird | 1987-1988 |
2003-2005 Lincoln Aviator |
Aviator | 2003-2005 |
1979-1980, 1982-1987 Lincoln Continental |
Continental | 1979-1980, 1982-1987 |
2006-2008 Lincoln Mark LT |
Mark LT | 2006-2008 |
1980-1983 Lincoln Mark VI |
Mark VI | 1980-1983 |
1984-1992 Lincoln Mark VII |
Mark VII | 1984-1992 |
1993-1998 Lincoln Mark VIII |
Mark VIII | 1993-1998 |
1998-2005, 2009-2014 Lincoln Navigator |
Navigator | 1998-2005, 2009-2014 |
1981-2011 Lincoln Town Car |
Town Car | 1981-2011 |
1994-1997, 2002 Mazda B-Series |
B-Series | 1994-1997, 2002 |
1998-2001, 2003-2008 Mazda B3000 |
B3000 | 1998-2001, 2003-2008 |
1998-2001, 2003-2007 Mazda B4000 |
B4000 | 1998-2001, 2003-2007 |
1979-1986 Mercury Capri |
Capri | 1979-1986 |
1979-1988 Mercury Cougar |
Cougar | 1979-1988 |
1975-1978, 1980-2011 Mercury Grand Marquis |
Grand Marquis | 1975-1978, 1980-2011 |
2003-2004 Mercury Marauder |
Marauder | 2003-2004 |
1997-2010 Mercury Mountaineer |
Mountaineer | 1997-2010 |
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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