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USA Standard Gear Ford 8.8 Inch Ring and Pinion Gear Set 3.90 Ratio ZG F8.8-390
$418.89

USA Standard Gear ZG F8.8-390 Ring and Pinion Set

If you're looking to enhance your vehicle's performance, the USA Standard Gear ZG F8.8-390 Ring and Pinion Set is a solid choice. Designed for those who demand reliability and durability, this gear set delivers a 3.90 ratio, making it ideal for both daily driving and off-road adventures.

Key Features:

  • Fits standard rotation Ford 8.8 inch differentials
  • 8.80 Inch Ring Gear Diameter for robust performance
  • 30 Spline Pinion for added strength
  • 10 ring gear bolts for secure attachment
  • 3.90 gear ratio for improved torque and acceleration

Benefits:

This ring and pinion set is engineered to provide a smooth and efficient drive, whether you're cruising the highways or tackling rough terrains. Customers have reported noticeable improvements in power delivery and overall handling after installation. One user shared, "After swapping out my old gears for the ZG F8.8-390, my truck feels so much more responsive. I couldn't be happier!"

Technical Specifications:

This gear set comes with a 1-year warranty against manufacturer defects, ensuring peace of mind with your purchase. Its design is optimized for easy installation, making it a great choice for both seasoned mechanics and DIY enthusiasts.

Customer Feedback:

Many customers appreciate the quality and performance of USA Standard Gear products. One satisfied buyer mentioned, "I installed this gear set in my Ford Explorer, and the difference was night and day. It's like a whole new vehicle!"

Upgrade your ride with the USA Standard Gear ZG F8.8-390 Ring and Pinion Set and experience the difference in performance and reliability.

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WARNING: Cancer and Reproductive Harm
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Vehicle Make/Model
Ford Bronco 1983, 1993 XLT Lariat
Ford Bronco 1983-1993 Custom
Ford Bronco 1983 XLS
Ford Bronco 1984-1992, 1994-1996 XLT
Ford Bronco 1985-1996 Eddie Bauer
Ford Bronco 1990-1996 XL
Ford Bronco 1992 XLT Nite
Ford Bronco 1995-1996 XLT Sport
Ford Bronco II 1984-1985 XLS
Ford Bronco II 1984-1990 XLT
Ford Bronco II 1984-1986 Base
Ford Bronco II 1984-1990 Eddie Bauer
Ford Bronco II 1987-1990 XL
Ford Bronco II 1988-1990 XL Sport
Ford Bronco II 1989-1990 XLT Plus
Ford Crown Victoria 1992 Touring Sedan
Ford Crown Victoria 1992-2005 S
Ford Crown Victoria 1992-2011 LX
Ford Crown Victoria 1992-2008, 2010-2011 Base
Ford Crown Victoria 1993-2011 Police Interceptor
Ford Crown Victoria 2002-2009 LWB
Ford Crown Victoria 2004-2006 LX Sport
Ford Crown Victoria 2005 Special Edition
Ford Crown Victoria 2006-2009 Fleet
Ford E-100 Econoline 1983 XL
Ford E-100 Econoline 1983 Custom
Ford E-150 2002-2014 XL
Ford E-150 2003-2014 Base
Ford E-150 2006-2014 XLT
Ford E-150 2006-2007 Chateau
Ford E-150 Club Wagon 2003-2005 Chateau
Ford E-150 Club Wagon 2003-2005 XLT
Ford E-150 Club Wagon 2003-2005 XL
Ford E-150 Econoline 1983-2000 XL
Ford E-150 Econoline 1983, 1987-1991 Custom
Ford E-150 Econoline 1984-1986, 1992-2002, 2007-2008 Base
Ford E-150 Econoline Club Wagon 1983, 1987-2000 Custom
Ford E-150 Econoline Club Wagon 1983-1991, 2001-2002 XL
Ford E-150 Econoline Club Wagon 1984-2002 XLT
Ford E-150 Econoline Club Wagon 1984-1986 Base
Ford E-150 Econoline Club Wagon 1992-2002 Chateau
Ford E-250 Econoline 1983, 1987-1991 Custom
Ford E-250 Econoline 1983-1998 XL
Ford E-250 Econoline 1984-1986, 1992-1998 Base
Ford E-250 Econoline Club Wagon 1983-1991 XL
Ford E-250 Econoline Club Wagon 1983, 1987-1991 Custom
Ford E-250 Econoline Club Wagon 1984-1991 XLT
Ford E-250 Econoline Club Wagon 1984-1986 Base
Ford Expedition 1997 XLT Plus
Ford Expedition 1997-2014 XLT
Ford Expedition 1997-2010 Eddie Bauer
Ford Expedition 2004 NBX
Ford Expedition 2004, 2006 XLT Sport
Ford Expedition 2004-2006 XLS
Ford Expedition 2005-2006, 2008-2014 King Ranch
Ford Expedition 2005-2014 Limited
Ford Expedition 2007-2014 Max Limited
Ford Expedition 2007-2014 EL Limited
Ford Expedition 2007-2014 EL XLT
Ford Expedition 2007-2008 Eddie Bauer Max
Ford Expedition 2007-2010 Max Eddie Bauer
Ford Expedition 2007-2010 EL Eddie Bauer
Ford Expedition 2008 Funkmaster Flex Edition
Ford Expedition 2008-2014 EL King Ranch
Ford Expedition 2009-2011 Max King Ranch
Ford Expedition 2011-2014 XL
Ford Expedition 2011, 2014 Max XL
Ford Expedition 2011-2014 EL XL
Ford Explorer 1991-1993 4x4
Ford Explorer 1991-1993 Base
Ford Explorer 1991-2010 XLT
Ford Explorer 1991-2000 Sport
Ford Explorer 1991-2010 Eddie Bauer
Ford Explorer 1991-1999 XL
Ford Explorer 1993-2010 Limited
Ford Explorer 1995 Expedition
Ford Explorer 1999-2006 XLS
Ford Explorer 2000-2003 Postal
Ford Explorer 2000-2001 XL Fleet
Ford Explorer 2004-2005 XLS Sport
Ford Explorer 2004-2005 XLT Sport
Ford Explorer 2004 NBX
Ford Explorer 2010 XLT Base
Ford Explorer Sport 2001-2003 Base
Ford Explorer Sport 2003 XLS
Ford Explorer Sport 2003 XLT
Ford Explorer Sport Trac 2001, 2007-2010 Base
Ford Explorer Sport Trac 2002 XL
Ford Explorer Sport Trac 2003-2005 XLS
Ford Explorer Sport Trac 2003-2005, 2007-2010 XLT
Ford Explorer Sport Trac 2005 Adrenalin
Ford Explorer Sport Trac 2007-2010 Limited
Ford F-100 Ranger 1996-1998 Base
Ford F-100 Ranger 1996-2001 XL
Ford F-100 Ranger 1996-2001 XLT
Ford F-100 Ranger 1999-2000 HD
Ford F-100 Ranger 1999-2000 XLT Sport
Ford F-100 Ranger 1999-2000 XL Sport
Ford F-100 Ranger 2001 Sport
Ford F-150 1983-2014 XL
Ford F-150 1983 XLS
Ford F-150 1983-1986, 1997-2000 Base
Ford F-150 1983-1992 Custom
Ford F-150 1983-1984, 1990-2014 XLT
Ford F-150 1984-1989 Ranger
Ford F-150 1985-1992 XLT Lariat
Ford F-150 1993-1995, 1999-2003 Lightning
Ford F-150 1995-1996 Eddie Bauer
Ford F-150 1995-1996 Special
Ford F-150 1997-2014 Lariat
Ford F-150 1998-1999 Austera
Ford F-150 2000-2003, 2006-2008, 2010-2012 Harley-Davidson Edition
Ford F-150 2001-2003, 2005-2014 King Ranch
Ford F-150 2004-2014 STX
Ford F-150 2004-2009 Flotillera
Ford F-150 2004-2014 FX4
Ford F-150 2007-2008, 2010-2014 FX2
Ford F-150 2008 THE 60TH ANNIVERSARY EDITION
Ford F-150 2008, 2013-2014 Limited
Ford F-150 2008 XTR
Ford F-150 2009-2014 Platinum
Ford F-150 2010-2014 SVT Raptor
Ford F-150 2011 Lariat Limited
Ford F-150 2014 Tremor
Ford F-150 Heritage 2004 XL
Ford F-150 Heritage 2004 SVT Lightning
Ford F-150 Heritage 2004 XLT
Ford Fairmont 1978-1983 Base
Ford Fairmont 1978-1983 Futura
Ford Fairmont 1979-1983 Wagon
Ford Fairmont 1979-1983 Elite
Ford Fairmont 1981, 1983 S
Ford Granada 1979-1980 ESS
Ford Granada 1979-1980 Base
Ford Granada 1979-1980 Ghia
Ford Granada 1981-1982 L
Ford Granada 1981-1982 GL
Ford Granada 1981-1982 GLX
Ford LTD 1979-1986 Country Squire
Ford LTD 1979 Landau
Ford LTD 1979-1986 Base
Ford LTD 1980-1986 Crown Victoria
Ford LTD 1980-1982 S
Ford LTD 1983-1986 Brougham
Ford LTD 1985 LX Brougham
Ford LTD 1986 Country Squire LX
Ford LTD 1986 Crown Victoria LX
Ford LTD Crown Victoria 1987-1991 LX
Ford LTD Crown Victoria 1987-1991 Base
Ford LTD Crown Victoria 1987-1991 S
Ford LTD II 1979 Landau
Ford LTD II 1979 S
Ford LTD II 1979 Base
Ford Mustang 1979-1982 Ghia
Ford Mustang 1979-1984, 1994-2014 Base
Ford Mustang 1981, 1997 Cobra
Ford Mustang 1982-1984 L
Ford Mustang 1982-1983 GL
Ford Mustang 1982-2014 GT
Ford Mustang 1982-1983 GLX
Ford Mustang 1983 Turbo GT
Ford Mustang 1984 GT-350 20th Anniversary
Ford Mustang 1984-1993 LX
Ford Mustang 1984-1986 SVO
Ford Mustang 1993-1999, 2001, 2003-2004 SVT Cobra
Ford Mustang 1993, 1995, 2000 SVT Cobra R
Ford Mustang 1995 GTS
Ford Mustang 1996-1997 High
Ford Mustang 1998-2003 Equipado
Ford Mustang 1998 Semi-Equipado
Ford Mustang 2001 GT Bullitt
Ford Mustang 2003 SVT Cobra 10th Anniversary
Ford Mustang 2003-2004 Mach 1
Ford Mustang 2007-2009 Lujo
Ford Mustang 2007-2008 Shelby GT
Ford Mustang 2007-2014 Shelby GT500
Ford Mustang 2008-2009 Shelby GT500KR
Ford Mustang 2008-2009 Bullitt
Ford Mustang 2009-2014 Shelby
Ford Mustang 2012, 2014 ST
Ford Mustang 2012-2013 Boss 302
Ford Ranger 1990-1992 Custom
Ford Ranger 1990-1992 S
Ford Ranger 1990-1997, 2005-2007 STX
Ford Ranger 1990-2011 XLT
Ford Ranger 1990 S Plus
Ford Ranger 1991-1993, 1997, 2002, 2006-2011 Sport
Ford Ranger 1993-1998 Splash
Ford Ranger 1993-2011 XL
Ford Ranger 1995 XL Sport
Ford Ranger 1998-2002 EV
Ford Ranger 2001-2005 Edge
Ford Ranger 2002 Postal
Ford Ranger 2004 Tremor
Ford Ranger 2005-2009 FX4
Ford Ranger 2006-2010 Limited
Ford Ranger 2008-2011 Base
Ford Thunderbird 1987-1992, 1995-1996 Base
Ford Thunderbird 1987-1997 LX
Ford Thunderbird 1987-1988 Sport
Ford Thunderbird 1987-1988 Turbo
Ford Thunderbird 1987-1990 Equipado
Ford Thunderbird 1989-1995 Super Coupe
Ford Thunderbird 1991-1994 V8
Lincoln Aviator 2003-2005 Base
Lincoln Aviator 2004-2005 Luxury
Lincoln Aviator 2004 Ultimate
Lincoln Aviator 2005 Premier
Lincoln Continental 1979-1980, 1982-1987 Base
Lincoln Continental 1982-1987 Givenchy
Lincoln Continental 1982 Signature
Lincoln Continental 1983-1985 Valentino
Lincoln Mark LT 2006-2008 Base
Lincoln Mark VI 1980-1983 Base
Lincoln Mark VI 1982-1983 Signature
Lincoln Mark VI 1982-1983 Bill Blass
Lincoln Mark VI 1982-1983 Pucci
Lincoln Mark VI 1982 Givenchy
Lincoln Mark VII 1984-1985 Versace
Lincoln Mark VII 1984-1992 Bill Blass
Lincoln Mark VII 1984-1987 Base
Lincoln Mark VII 1984-1992 LSC
Lincoln Mark VIII 1993-1998 Base
Lincoln Mark VIII 1995-1998 LSC
Lincoln Mark VIII 1996 Anniversary
Lincoln Navigator 1998-2005 Base
Lincoln Navigator 2004-2005 Ultimate
Lincoln Town Car 1981-1999 Base
Lincoln Town Car 1982-2003 Cartier
Lincoln Town Car 1982-2007 Signature
Lincoln Town Car 1989 Signature SE
Lincoln Town Car 1990-2011 Executive
Lincoln Town Car 1990-1995 Cypress
Lincoln Town Car 1990-1995, 1997 Touring Edition
Lincoln Town Car 1993 Jack Nicklaus
Lincoln Town Car 1994 Tournament Edition
Lincoln Town Car 1996 Anniversary
Lincoln Town Car 2001-2003 Cartier L
Lincoln Town Car 2001-2011 Executive L
Lincoln Town Car 2003 Executive Protection Series
Lincoln Town Car 2004 Ultimate
Lincoln Town Car 2004 Ultimate L
Lincoln Town Car 2004-2006 Protection Series
Lincoln Town Car 2005-2011 Signature Limited
Lincoln Town Car 2005-2011 Signature L
Lincoln Town Car 2006-2007 Designer Series
Lincoln Town Car 2007 Designer
Mazda B3000 1994-1997, 2002, 2005-2007 Base
Mazda B3000 1994-1996, 1998-2001, 2003-2004 SE
Mazda B3000 1998, 2000 SX
Mazda B3000 1999-2000 Troy Lee
Mazda B3000 2001-2008 DS
Mazda B4000 1994-1996 LE
Mazda B4000 1994-2001, 2003-2007 SE
Mazda B4000 1997, 2002-2007 Base
Mazda B4000 2000 Troy Lee
Mazda B4000 2001-2004 DS
Mazda Navajo 1991-1994 LX
Mazda Navajo 1992-1994 DX
Mercury Capri 1979-1983 Base
Mercury Capri 1979-1980 Ghia
Mercury Capri 1981-1986 GS
Mercury Capri 1982-1983 L
Mercury Capri 1982-1983 Black Magic
Mercury Capri 1982-1985 RS
Mercury Capri 1983 Crimson Cat
Mercury Capri 1984 RS Turbo
Mercury Capri 1986 5
Mercury Cougar 1979, 1981-1986 Base
Mercury Cougar 1979-1982, 1984-1997 XR-7
Mercury Cougar 1982-1992 LS
Mercury Cougar 1982 GS
Mercury Grand Marquis 1975-1989 Base
Mercury Grand Marquis 1979-1986 Colony Park
Mercury Grand Marquis 1983-2011 LS
Mercury Grand Marquis 1987-2008 GS
Mercury Grand Marquis 2003 LSE
Mercury Grand Marquis 2005 Ultimate Edition
Mercury Grand Marquis 2005 Limited Edition
Mercury Grand Marquis 2005 GSL
Mercury Marauder 2003-2004 Base
Mercury Mountaineer 1997-2004, 2007-2010 Base
Mercury Mountaineer 2004-2010 Premier
Mercury Mountaineer 2005-2006 Luxury
Mercury Mountaineer 2005-2006 Convenience

USA Standard Gear Banner

Who is USA Standard Gear?

USA Standard Gear is a company that supplies high-quality parts for the automotive industry. They are a one-stop-shop for all your drivetrain component needs and have one of the industry's most comprehensive parts list and inventory. Today, they are considered the leading supplier of these parts in the United States.

Drivetrain Experts

The company offers various parts ranging from axles, differential gears, lockers, limited slips, drivelines, and more. It is built by a team of craftsmen who has years of experience when it comes to assembling and modifying their own builds. This passion is what drives the company to create some of the best products in the market.

Quality In Every Product

All their parts are manufactured in their facility equipped with the latest and most sophisticated tools available today. They also have two high-tech testing labs to ensure that every product comes out with the company's quality.

The USA Standard Gear engineering team is constantly on edge trying to find ways to develop and further improve their products. That is why they can produce innovative parts that adapt to the changing trend in the automotive world.

Purchase USA Standard Gear at Vivid Racing

If you are in the market for reliable and top-notched drivetrain components, then USA Standard Gear is the brand for you. With years of experience developing their products, they have provided their customers with parts they could trust, whether it's a replacement component or an upgrade. 

To know more about USA Standard Gear, visit Vivid Racing and check out their list of offerings that fit your specific requirement.





USA Standard Gear® ("USA Standard") warrants the original retail purchaser that all USA Standard products will be free from defects in materials and workmanship for the periods shown herein. USA Standard makes no other warranty of any kind, express or implied. All other warranties, including but not limited to an implied warranty of merchantability or fitness for a particular purpose, are excluded. This warranty is offered provided that the USA Standard product has been installed and maintained in accordance with USA Standard instructions, and that it has not been subject to modification, accident, abnormal use or misuse. At USA Standard's discretion, this warranty may be voided if installation of USA Standard product(s) occurs on vehicles with tires that exceed USA Standard Maximum Recommended Tire Size.

Upon notification of a warranty claim, USA Standard shall investigate the claim of defect, and, in the event of a verified defect, shall, at their sole choice, either repair the defective product or replace it.

This warranty does not cover, and USA Standard 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 USA Standard product). In addition, this warranty does not cover, and USA Standard shall not be liable for, any undertaking, representation, or agreements made by dealers or other third parties selling USA Standard Gear® 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-USA Standard component.

This agreement offers you specific legal rights. You may also have other rights which vary from state to state.

USA STANDARD GEAR® WARRANTY BY PRODUCT
USA Standard Product Length of Warranty (From date of sale) NOTES
SpoolAs long as original purchaser owns vehicle in which Spool is originally installed 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.
Rear Axle (1040/1050)Five (5) Years Covers parts for five years against manufacturing defects.
Front Axle (Series ZA W)Five (5) Years Five year warranty covering manufacturing defects and axle breakage. This warranty is not transferable to another party. “No Questions Asked” replacement for first warranty return, however, USA Standard Gear reserves the right to either replace axle or refund original purchase price after the first warranty claim. USA Standard Gear (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
Ring & Pinion Gear SetOne (1) YearWarrantied against manufacturing defects for one (1) year.
Positraction DifferentialOne (1) Year 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.
Spartan LockerOne (1) YearWarrantied against manufacturers defects for one (1) year.
Install KitsOne (1) Year Includes ZBK, ZPK, and ZK. Covers parts for one year against manufacturing defects.
Spider Gear Kits (ZIK)One (1) YearOne year against manufacturing defects. Exclusions apply, does not cover clutch wear in limited slip differentials.
Replacement Driveshafts (ZDS)One (1) Year Warrantied against manufacturing defects for one (1) year.

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