Confirmed Fit
Yukon Gear & Axle
Yukon Gear Friction Modifier
$20.89
Technical Data
A friction modifier is essential for keeping your limited slip or posi differential running smooth. The Yukon Gear friction modifier additive is formulated to reduce clutch chatter, improve engagement, and extend the life of your gears.
This friction modifier comes in a 4 oz bottle, making it easy to add during fluid changes. Designed specifically for limited slip/posi differentials, it ensures your rear end operates quietly and efficiently, whether you’re daily driving, towing, or hitting the trails.
Trusted by enthusiasts and professionals alike, this Yukon Gear posi additive delivers OEM‑quality performance and reliability. It’s the quick fix that keeps your driveline strong and your ride smooth.
Features and Benefits
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Reduces clutch chatter – Keeps your limited slip differential quiet and smooth.
-
Improves engagement – Ensures consistent traction when you need it most.
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4 oz bottle – Convenient size for single fluid service or top‑off.
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OEM‑quality formula – Designed for compatibility with Yukon Gear and other limited slip/posi units.
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Extends gear life – Protects against premature wear and tear.
Smooth Performance Every Mile
This friction modifier is the secret to a quiet, reliable limited slip differential. With Yukon Gear’s proven formula, you’ll enjoy smoother engagement and longer gear life—mile after mile.
Specifications
| Specification | Detail |
|---|---|
| Part Number | yukOILADD |
| Title | Yukon Gear friction modifier, posi additive |
| Description | Friction modifier additive for limited slip/posi |
| Bottle Size | 4 oz |
| Fitment | Limited slip/posi differentials |
| Package UOM | EA (each) |
| Selling Package Quantity | 1 |
| CA Proposition 65 | Yes – Cancer and Reproductive Harm (www.P65Warnings.ca.gov) |
Installation Instructions
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1980 | American Motors | AMX | Base |
| 1980-1983 | American Motors | Concord | Base |
| 1980-1983 | American Motors | Concord | DL |
| 1980-1983 | American Motors | Concord | Limited |
| 1981-1988 | American Motors | Eagle | Base |
| 1980 | American Motors | Eagle | DL |
| 1981-1982 | American Motors | Eagle | DL Kammback |
| 1981-1983 | American Motors | Eagle | DL SX4 |
| 1981-1982 | American Motors | Eagle | Kammback |
| 1980-1987 | American Motors | Eagle | Limited |
| 1980 | American Motors | Eagle | Sport |
| 1981-1983 | American Motors | Eagle | SX4 |
| 1980 | American Motors | Pacer | DL |
| 1980 | American Motors | Pacer | Limited |
| 1980-1982 | American Motors | Spirit | Base |
| 1980-1983 | American Motors | Spirit | DL |
| 1983 | American Motors | Spirit | GT |
| 1980 | American Motors | Spirit | Limited |
| 1980-1981 | Buick | Century | Base |
| 1980-1981 | Buick | Century | Estate |
| 1980-1981 | Buick | Century | Limited |
| 1980-1981 | Buick | Century | Sport |
| 1980-1989 | Buick | Electra | Estate Wagon |
| 1980-1985 | Buick | Electra | Limited |
| 1980-1985 | Buick | Electra | Park Avenue |
| 1985 | Buick | Electra | T-Type |
| 1980-1983 | Buick | Estate Wagon | Base |
| 1980-1981 | Buick | LeSabre | Base |
| 1985 | Buick | LeSabre | Collector's Edition |
| 1982-1985 | Buick | LeSabre | Custom |
| 1985-1990 | Buick | LeSabre | Estate Wagon |
| 1980-1985 | Buick | LeSabre | Limited |
| 1982 | Buick | LeSabre | Limited Edition F/E |
| 1980-1981 | Buick | LeSabre | Sport |
| 2004-2007 | Buick | Rainier | CXL |
| 2004-2005 | Buick | Rainier | CXL Plus |
| 1980-1987 | Buick | Regal | Base |
| 1982-1983 | Buick | Regal | Estate Wagon |
| 1987 | Buick | Regal | GNX |
| 1984-1987 | Buick | Regal | Grand National |
| 1980-1987 | Buick | Regal | Limited |
| 1982 | Buick | Regal | Limited Turbo |
| 1980-1982 | Buick | Regal | Sport |
| 1983-1986 | Buick | Regal | T-Type |
| 1992-1995 | Buick | Roadmaster | Base |
| 1996 | Buick | Roadmaster | Collector's Edition |
| 1991-1995 | Buick | Roadmaster | Estate Wagon |
| 1996 | Buick | Roadmaster | Estate Wagon Collector's Edition |
| 1992-1995 | Buick | Roadmaster | Limited |
| 1996 | Buick | Roadmaster | Limited Collector's Edition |
| 1980 | Buick | Skyhawk | Base |
| 1980 | Buick | Skyhawk | Designers' Accent Edition |
| 1980 | Buick | Skyhawk | Road Hawk |
| 1980 | Buick | Skyhawk | S |
| 1987-1992 | Cadillac | Brougham | Base |
| 1987-1992 | Cadillac | Brougham | d'Elegance |
| 1980-1984 | Cadillac | DeVille | Base |
| 1980-1984 | Cadillac | DeVille | Cabriolet |
| 1980-1984 | Cadillac | DeVille | d'Elegance |
| 1999-2000,2002-2017 | Cadillac | Escalade | Base |
| 2009-2013 | Cadillac | Escalade | Hybrid |
| 2010-2013 | Cadillac | Escalade | Hybrid Platinum |
| 2011-2017 | Cadillac | Escalade | Luxury |
| 2008-2017 | Cadillac | Escalade | Platinum |
| 2011-2016 | Cadillac | Escalade | Premium |
| 2017 | Cadillac | Escalade | Premium Luxury |
| 2008-2018 | Cadillac | Escalade ESV | Base |
| 2011-2018 | Cadillac | Escalade ESV | Luxury |
| 2008-2018 | Cadillac | Escalade ESV | Platinum |
| 2011-2016 | Cadillac | Escalade ESV | Premium |
| 2017-2018 | Cadillac | Escalade ESV | Premium Luxury |
| 1980-1984,1993-1996 | Cadillac | Fleetwood | Base |
| 1980-1986,1993-1996 | Cadillac | Fleetwood | Brougham |
| 1980-1986 | Cadillac | Fleetwood | Brougham d'Elegance |
| 1980-1984 | Cadillac | Fleetwood | Formal |
| 1985-2005 | Chevrolet | Astro | Base |
| 1985-1995 | Chevrolet | Astro | CL |
| 1985-1995 | Chevrolet | Astro | CS |
| 1996-2005 | Chevrolet | Astro | LS |
| 1987-2005 | Chevrolet | Astro | LT |
| 2013 | Chevrolet | Avalanche | Black Diamond LS |
| 2013 | Chevrolet | Avalanche | Black Diamond LT |
| 2013 | Chevrolet | Avalanche | Black Diamond LTZ |
| 2007-2012 | Chevrolet | Avalanche | LS |
| 2007-2012 | Chevrolet | Avalanche | LT |
| 2007-2012 | Chevrolet | Avalanche | LTZ |
| 2002-2005 | Chevrolet | Avalanche 1500 | Base |
| 2005-2006 | Chevrolet | Avalanche 1500 | LS |
| 2005-2006 | Chevrolet | Avalanche 1500 | LT |
| 2002-2003 | Chevrolet | Avalanche 1500 | North Face |
| 2002-2003 | Chevrolet | Avalanche 1500 | On Road Edition |
| 2003 | Chevrolet | Avalanche 1500 | WBH |
| 2004-2006 | Chevrolet | Avalanche 1500 | Z66 |
| 2002-2006 | Chevrolet | Avalanche 1500 | Z71 |
| 2002-2004 | Chevrolet | Avalanche 2500 | Base |
| 2005-2006 | Chevrolet | Avalanche 2500 | LS |
| 2005-2006 | Chevrolet | Avalanche 2500 | LT |
| 1994-1999,2005 | Chevrolet | Blazer | Base |
| 1992-1993 | Chevrolet | Blazer | Cheyenne |
| 1987 | Chevrolet | Blazer | Custom Deluxe |
| 1996-2004 | Chevrolet | Blazer | LS |
| 1995-2001 | Chevrolet | Blazer | LT |
| 1988-1991 | Chevrolet | Blazer | Scottsdale |
| 1987-1994 | Chevrolet | Blazer | Silverado |
| 1994 | Chevrolet | Blazer | Silverado Sport |
| 1999-2001 | Chevrolet | Blazer | Trailblazer |
| 2001-2005 | Chevrolet | Blazer | Xtreme |
| 2003-2005 | Chevrolet | Blazer | ZR2 |
| 1980 | Chevrolet | C10 | Big Ten |
| 1980-1981 | Chevrolet | C10 | Cheyenne |
| 1981-1986 | Chevrolet | C10 | Custom |
| 1980 | Chevrolet | C10 | Custom Deluxe |
| 1981 | Chevrolet | C10 | Deluxe |
| 1980-1986 | Chevrolet | C10 | Scottsdale |
| 1980-1986 | Chevrolet | C10 | Silverado |
| 1981-1986 | Chevrolet | C10 Suburban | Custom |
| 1980 | Chevrolet | C10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C10 Suburban | Deluxe |
| 1980,1982,1984-1986 | Chevrolet | C10 Suburban | Scottsdale |
| 1980,1982-1986 | Chevrolet | C10 Suburban | Silverado |
| 1990-1993 | Chevrolet | C1500 | 454 SS |
| 1994-1997 | Chevrolet | C1500 | Base |
| 1988-1998 | Chevrolet | C1500 | Cheyenne |
| 1999 | Chevrolet | C1500 | LS |
| 1988-1992 | Chevrolet | C1500 | Scottsdale |
| 1988-1998 | Chevrolet | C1500 | Silverado |
| 1990-1998 | Chevrolet | C1500 | WT |
| 1992-1999 | Chevrolet | C1500 Suburban | Base |
| 1995-1999 | Chevrolet | C1500 Suburban | LS |
| 1995-1997,1999 | Chevrolet | C1500 Suburban | LT |
| 1992-1994 | Chevrolet | C1500 Suburban | Silverado |
| 1980-1981 | Chevrolet | C20 | Cheyenne |
| 1981-1986 | Chevrolet | C20 | Custom |
| 1980 | Chevrolet | C20 | Custom Deluxe |
| 1981 | Chevrolet | C20 | Deluxe |
| 1980-1986 | Chevrolet | C20 | Scottsdale |
| 1980-1986 | Chevrolet | C20 | Silverado |
| 1981-1986 | Chevrolet | C20 Suburban | Custom |
| 1980 | Chevrolet | C20 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C20 Suburban | Deluxe |
| 1980,1982,1984-1986 | Chevrolet | C20 Suburban | Scottsdale |
| 1980,1982-1986 | Chevrolet | C20 Suburban | Silverado |
| 1994-1997,1999-2000 | Chevrolet | C2500 | Base |
| 1988-1998 | Chevrolet | C2500 | Cheyenne |
| 1999-2000 | Chevrolet | C2500 | LS |
| 1988-1992 | Chevrolet | C2500 | Scottsdale |
| 1988-1998 | Chevrolet | C2500 | Silverado |
| 1994-1995,1998 | Chevrolet | C2500 | WT |
| 1992-1999 | Chevrolet | C2500 Suburban | Base |
| 1995-1999 | Chevrolet | C2500 Suburban | LS |
| 1995-1997 | Chevrolet | C2500 Suburban | LT |
| 1992-1994 | Chevrolet | C2500 Suburban | Silverado |
| 1980-1981 | Chevrolet | C30 | Cheyenne |
| 1981-1986 | Chevrolet | C30 | Custom |
| 1980 | Chevrolet | C30 | Custom Deluxe |
| 1981 | Chevrolet | C30 | Deluxe |
| 1980-1986 | Chevrolet | C30 | Scottsdale |
| 1980-1986 | Chevrolet | C30 | Silverado |
| 1994-1997,1999-2000 | Chevrolet | C3500 | Base |
| 1988-1998 | Chevrolet | C3500 | Cheyenne |
| 1999-2000 | Chevrolet | C3500 | LS |
| 1988-1992 | Chevrolet | C3500 | Scottsdale |
| 1988-1998 | Chevrolet | C3500 | Silverado |
| 1980,1988,1993-2002 | Chevrolet | Camaro | Base |
| 1980-1986 | Chevrolet | Camaro | Berlinetta |
| 1993 | Chevrolet | Camaro | Indianapolis 500 Pace Car |
| 1985-1990 | Chevrolet | Camaro | Iroc-Z |
| 2010-2015,2017-2018 | Chevrolet | Camaro | LS |
| 1987,2010-2018 | Chevrolet | Camaro | LT |
| 1980 | Chevrolet | Camaro | Rally Sport |
| 1989-1992,1996-1997 | Chevrolet | Camaro | RS |
| 1992 | Chevrolet | Camaro | RS Heritage Edition |
| 1981-1987 | Chevrolet | Camaro | Sport |
| 2010-2018 | Chevrolet | Camaro | SS |
| 2014-2015 | Chevrolet | Camaro | Z/28 |
| 1980-1987,1991-2002 | Chevrolet | Camaro | Z28 |
| 1992 | Chevrolet | Camaro | Z28 Heritage Edition |
| 1982 | Chevrolet | Camaro | Z28 Indianapolis 500 Pace Car |
| 1998-2002 | Chevrolet | Camaro | Z28 SS |
| 2012-2015,2017-2018 | Chevrolet | Camaro | ZL1 |
| 1986-1992 | Chevrolet | Caprice | Base |
| 1980-1996 | Chevrolet | Caprice | Classic |
| 1986-1990 | Chevrolet | Caprice | Classic Brougham |
| 1981-1982 | Chevrolet | Caprice | Classic Estate |
| 1980-1981 | Chevrolet | Caprice | Classic Landau |
| 1993-1994 | Chevrolet | Caprice | Classic LS |
| 1987-1990 | Chevrolet | Caprice | Classic LS Brougham |
| 1991-1993 | Chevrolet | Caprice | Classic LTZ |
| 1980 | Chevrolet | Caprice | Classic Sport |
| 2004,2015-2017 | Chevrolet | Colorado | Base |
| 2004,2006-2008 | Chevrolet | Colorado | LS |
| 2006-2012,2015-2017 | Chevrolet | Colorado | LT |
| 2004-2005 | Chevrolet | Colorado | Sport |
| 2004-2005 | Chevrolet | Colorado | Sport LS |
| 2006-2012,2015-2017 | Chevrolet | Colorado | WT |
| 2004-2005,2015-2017 | Chevrolet | Colorado | Z71 |
| 2004-2005 | Chevrolet | Colorado | Z71 LS |
| 2004-2005 | Chevrolet | Colorado | Z85 |
| 2004-2005 | Chevrolet | Colorado | Z85 LS |
| 2017 | Chevrolet | Colorado | ZR2 |
REVIEWS
D.W.
Added this Yukon friction modifier during a fluid change on my Mustang’s posi rear. Chatter is gone and engagement feels smooth. Great product!
David W.
Charlotte, NC
★★★★★
K.S.
Used this additive in my F-150’s limited slip. Easy to pour in, and the rear end runs quiet now. Definitely worth keeping a bottle on hand.
Kyle S.
Houston, TX
★★★★★
Specifications
Finish
Industrial Grade
Material
High-Strength Composite
Rating
Performance++
Fitment Data
• Engineered for precision compatibility with high-performance builds.
• Tested under extreme mechanical stress for guaranteed structural integrity.
Use the Riot Vehicle Finder to verify exact sub-model compatibility.
Logistics center
30-Day Technical Return
Verified Riot Protection
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Yukon Gear Friction Modifier
$20.89