Yukon Gear Trac Loc For Ford 9in With 31 Spline Axles. Aggressive Design Yukon Gear & Axle YUKYDGF9-31-AG
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Yukon Gear Trac Loc For Ford 9in With 31 Spline Axles. Aggressive Design

YUKYDGF9-31-AG
883584260097
Differentials
5 Units In Stock - Ships Next Business Day
$ 906.89
$ 906.89

SKU: YDGF9-31-AG | UPC: 883584260097

Yukon Gear Dura Grip Positraction Limited Slip Differential for Ford 9" 31 Spline Axles Aggressive Design Fits 1957-1988 Ford Models

The Yukon Dura Grip YDGF9-31-AG is a positraction limited slip differential designed for Ford 9-inch differentials with 31 spline axles. It fits a wide range of Ford vehicles from 1957 to 1988 including Mustangs Broncos F-Series trucks Fairlanes Rancheros and Econolines. This aggressive design provides smooth operation with strong traction for off-road street and track use delivering reliable power to both wheels.

Key Features

  • Aggressive Clutch Pack: Composite clutches engage quickly for maximum grip in low traction conditions across dirt mud snow or pavement
  • High Strength Nodular Case: Cast from durable nodular iron to withstand high torque and heavy abuse
  • Forged 4320 Chromoly Spider Gears: Heat treated for exceptional strength and longevity under extreme loads
  • Rebuildable Design: Serviceable clutches and components allow multiple rebuilds for extended service life
  • Smooth Positraction Operation: Transfers power evenly without chatter for confident handling in varied terrains

Product Notes

  • Direct replacement for open differentials or factory lockers in Ford 9-inch housings
  • Requires proper break-in procedure with specific gear oil additive for optimal clutch performance
  • Packaged in sturdy box dimensions 11.8 x 11.8 x 11.8 inches product weight 27.85 lbs shipping weight 30 lbs

Installation Notes

  • Professional installation recommended.
  • Confirm 31 spline axles and Ford 9-inch ring gear 9.0 to 9.75-inch diameter
  • Uses factory hardware torque specs per Ford service manual includes clutch preload shims

This Part Fits

Year Make Model Submodel
1957-1970 Ford Fairlane 500
1966-1967 Ford Fairlane 500XL
1957-1969 Ford Fairlane Base
1960-1970 Ford Falcon Base
1962 Ford Falcon Deluxe
1963-1970 Ford Falcon Futura
1963-1965 Ford Falcon Futura Sprint
1959-1967 Ford Galaxie Base
1957-1974 Ford F-100 Base
1976-1978 Ford F-100 Base
1983 Ford F-100 Base
1975-1982 Ford F-100 Custom
1975-1978 Ford F-100 Northland
1975-1981 Ford F-100 Ranger
1978-1981 Ford F-100 Ranger Lariat
1975-1981 Ford F-100 Ranger XLT
1961 Ford Galaxie Club Victoria
1960 Ford Galaxie Special
1961 Ford Galaxie Starliner
1961 Ford Galaxie Sunliner
1961 Ford Galaxie Town Victoria
1968-1974 Ford Galaxie 500 Base
1968-1970 Ford Galaxie 500 XL
1972-1976 Ford Gran Torino Base
1964-1969 Mercury Comet Base
1971-1977 Mercury Comet Base
1967-1973 Mercury Cougar Base
1977-1979 Mercury Cougar Base
1969-1970 Mercury Cougar Boss 302
1969-1970 Mercury Cougar Boss 429
1977 Mercury Cougar Brougham
1966-1974 Ford Bronco Base
1975-1986 Ford Bronco Custom
1985-1986 Ford Bronco Eddie Bauer
1975 Ford Bronco Northland
1978 Ford Bronco Northland
1975 Ford Bronco Ranger
1978-1981 Ford Bronco Ranger XLT
1968-1969 Ford Bronco Roadster
1967-1979 Ford Ranchero 500
1967 Ford Ranchero 500 XL
1957-1971 Ford Ranchero Base
1957-1958 Ford Ranchero Custom
1966 Ford Ranchero Custom
1968-1979 Ford Ranchero GT
1970-1979 Ford Ranchero Squire
1955-1979 Ford Thunderbird Base
1969-1970 Ford Mustang Boss 429
1970-1973 Ford Mustang Grande
1970-1973 Ford Mustang Mach 1
1965-1970 Ford Mustang Shelby GT-350
1966 Ford Mustang Shelby GT-350H
1967-1970 Ford Mustang Shelby GT-500
1968 Ford Mustang Shelby GT-500KR
1969-1970 Mercury Cougar Cobra Jet
1977 Mercury Cougar Villager
1967-1979 Mercury Cougar XR-7
1975-1980 Mercury Grand Marquis Base
1979-1980 Mercury Grand Marquis Colony Park
1969-1974 Ford E-100 Econoline Club Wagon
1975-1983 Ford E-100 Econoline Custom
1975-1978 Ford E-100 Econoline Northland
1983 Ford E-100 Econoline XL
1979-1982 Ford E-150 Econoline Base
1984-1986 Ford E-150 Econoline Base
1969-1974 Ford E-200 Econoline Club Wagon
1970-1974 Ford E-200 Econoline Custom Wagon
1975-1980 Ford E-250 Econoline Base
1975-1980 Ford E-250 Econoline Chateau
1975-1980 Ford E-250 Econoline Custom
1975-1978 Ford E-250 Econoline Northland
1970-1976 Ford LTD Brougham
1975-1979 Ford LTD Country Squire
1975-1979 Ford LTD Landau
1970-1977 Ford Maverick Base
1975-1977 Ford Maverick Grabber
1965-1973 Ford Mustang Base
1969-1971 Ford Mustang Boss 302
1971-1972 Ford Mustang Boss 351
1973-1976 Ford Gran Torino Brougham
1974-1975 Ford Gran Torino Elite
1972-1975 Ford Gran Torino Sport
1972-1976 Ford Gran Torino Squire
1975-1979 Ford Granada Base
1978-1979 Ford Granada ESS
1975-1979 Ford Granada Ghia
1965-1979 Ford LTD Base
1975-1977 Ford Bronco Sport
1968-1973 Ford Bronco Wagon
1982-1983 Ford Bronco XLS
1984-1986 Ford Bronco XLT
1982-1983 Ford Bronco XLT Lariat
1969-1982 Ford E-100 Econoline Base
1975-1982 Ford E-100 Econoline Chateau
1975-1981 Ford F-150 Ranger
1978-1981 Ford F-150 Ranger Lariat
1975-1981 Ford F-150 Ranger XLT
1982-1987 Ford F-150 XL
1982-1983 Ford F-150 XLS
1977 Ford F-150 XLT
1983-1984 Ford F-150 XLT
1982 Ford F-150 XLT Lariat
1985-1987 Ford F-150 XLT Lariat
1978 Ford Thunderbird Diamond Jubilee
1979 Ford Thunderbird Heritage
1978-1979 Ford Thunderbird Town Landau
1958-1979 Lincoln Continental Base
1968-1971 Lincoln Mark III Base
1964-1965 Mercury Comet 202
1964-1965 Mercury Comet 404
1979-1982 Ford E-150 Econoline Chateau
1979-1983 Ford E-150 Econoline Custom
1987-1988 Ford E-150 Econoline Custom
1983-1988 Ford E-150 Econoline XL
1971-1972 Ford E-200 Econoline Chateau Wagon
1982-1983 Ford F-100 XL
1982-1983 Ford F-100 XLS
1977 Ford F-100 XLT
1982-1983 Ford F-100 XLT Lariat
1976-1978 Ford F-150 Base
1983-1986 Ford F-150 Base
1975-1982 Ford F-150 Custom
1987 Ford F-150 Custom
1975-1978 Ford F-150 Northland

Why Choose Yukon Gear?

  • Over 40 years engineering driveline components for trucks SUVs and off-road vehicles
  • Uses premium materials like chromoly steel and nodular iron for daily driver and race durability
  • Precise tolerances ensure quiet operation and direct fit in OEM housings

Frequently Asked Questions

  • Q: Will this fit my 1969 Ford Mustang with Ford 9-inch rear?
    A: Yes it fits 1965-1973 Mustang Base Boss 302 Boss 351 Boss 429 Mach 1 Shelby models with 31 spline axles confirm your axle spline count
  • Q: What materials are used in the spider gears and case?
    A: Forged 4320 chromoly spider gears and high strength nodular iron case built for high horsepower and torque applications
  • Q: What warranty covers this Dura Grip?
    A: Backed by Yukon Gear limited warranty rebuildable design extends usability contact manufacturer for details

Shipping & Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Secure foam protected box 11.8 x 11.8 x 11.8 inches
  • Weight: 27.85 lbs product 30 lbs shipping

Request For Information

Have questions about Yukon Gear Trac Loc For Ford 9in With 31 Spline Axles. Aggressive Design? Fill out the form below and we'll get back to you by the next business day.
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