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  • USA Standard Gear Spartan Locker for 9", 28 or 31 Spline Axles SL F9-28-31 fits 1966-1986 Ford Bronco / 1978-1981 Ford F-150, F-100 / 1968-1969 Ford Fairlane, Galaxie 500 / 1975-1977 Ford Maverick, Granada
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USA Standard Gear Spartan Locker for 9", 28 or 31 Spline Axles SL F9-28-31 fits 1966-1986 Ford Bronco / 1978-1981 Ford F-150, F-100 / 1968-1969 Ford Fairlane, Galaxie 500 / 1975-1977 Ford Maverick, Granada
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Load image into Gallery viewer, USA Standard Gear Spartan Locker for 9", 28 or 31 Spline Axles SL F9-28-31 fits 1966-1986 Ford Bronco / 1978-1981 Ford F-150, F-100 / 1968-1969 Ford Fairlane, Galaxie 500 / 1975-1977 Ford Maverick, Granada

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USA Standard Gear Spartan Locker for 9", 28 or 31 Spline Axles SL F9-28-31 fits 1966-1986 Ford Bronco / 1978-1981 Ford F-150, F-100 / 1968-1969 Ford Fairlane, Galaxie 500 / 1975-1977 Ford Maverick, Granada

⚠️ Please verify fitment before purchasing. Check the fitment chart below or use the Year/Make/Model tool to confirm this part fits your vehicle.

⚠️ Verify fitment before purchasing. Check the fitment chart below or click the 3 lines in the top left menu, select Home, then use the Year/Make/Model guide.

USA Standard Gear
SL F9-28-31
Out of stock
$543.99 USD
USA Standard Gear Spartan Locker for 9", 28 or 31 Spline Axles SL F9-28-31 fits 1966-1986 Ford Bronco / 1978-1981 Ford F-150, F-100 / 1968-1969 Ford Fairlane, Galaxie 500 / 1975-1977 Ford Maverick, Granada
Description
The Spartan Locker is a lunchbox locker that delivers reliable, 100% lockup traction at a low cost. It's design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap!


Specifications:

Description_SHO Spartan Locker
Description_INV SL F9-28-31
Description_DES Spartan Locker for Ford 9", 28 or 31 spline axles
Description_ASM 8"&9" FORD 28spl &31spl SPARTAN LOCKER
Description_EXT The Spartan Locker is a lunchbox locker that delivers reliable, 100% lockup traction at a low cost. It's design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap!
Description_FAB Fits Ford 8" and 9" with 28 or 31 spline axles
Description_FAB Made from 9310 steel for added strength
Description_FAB Works with stock side gears in standard carrier case
Description_FAB Mechanical locker delivers reliable 100% lockup
Description_DEF Differential Spool

This Part Fits:

Year Make Model Submodel
1965 Ford Falcon Base Wagon 2-Door
1965 Ford Falcon Futura Convertible 2-Door
1965 Ford Falcon Futura Sprint Convertible 2-Door
1965 Ford Falcon Futura Sprint Hardtop 2-Door
1965 Lincoln Continental Base Convertible 2-Door
1965 Mercury Comet 202 Sedan 4-Door
1965 Mercury Comet 202 Wagon 4-Door
1965 Mercury Comet 404 Sedan 4-Door
1965 Mercury Comet 404 Wagon 4-Door
1965 Mercury Comet Base Wagon 4-Door
1965,1967-1970 Ford Falcon Futura Hardtop 2-Door
1965,1971-1973,1975-1977 Mercury Comet Base Sedan 4-Door
1965-1966 Ford Fairlane 500 Coupe 2-Door
1965-1966 Ford Falcon Futura Coupe 2-Door
1965-1966 Ford LTD Base Fastback 2-Door
1965-1966 Ford LTD Base Hardtop 4-Door
1965-1967 Ford Falcon,Fairlane Base Sedan 4-Door
1965-1967 Ford Galaxie Base Hardtop 4-Door
1965-1968,1970 Ford Fairlane 500 Hardtop 2-Door
1965-1969 Ford Fairlane Base Sedan 4-Door
1965-1969 Ford Fairlane Base Wagon 4-Door
1965-1970 Ford Fairlane 500 Sedan 4-Door
1965-1970 Ford Falcon Base Sedan 4-Door
1965-1970 Ford Falcon Futura Sedan 4-Door
1965-1970 Ford Falcon Futura Wagon 4-Door
1965-1971 Ford Ranchero Base Standard Cab Pickup 2-Door
1965-1973 Lincoln Continental Base Sedan 4-Door
1966 Ford Ranchero Custom Standard Cab Pickup 2-Door
1966,1969-1973 Ford Mustang Base Convertible 2-Door
1966,1969-1973 Ford Mustang Base Hardtop 2-Door
1966-1967 Ford Fairlane 500XL Convertible 2-Door
1966-1967 Ford Fairlane 500XL Hardtop 2-Door
1966-1967,1969-1973 Ford Bronco Base
1966-1967,1974 Ford Bronco Base Sport Utility 2-Door
1966-1969 Ford Fairlane 500 Convertible 2-Door
1966-1970 Ford Fairlane 500 Wagon 4-Door
1966-1970 Ford Falcon Base Wagon 4-Door
1966-1972 Ford Bronco Base Standard Cab Pickup 2-Door
1966-1973 Lincoln Continental Base Coupe 2-Door
1967 Ford Ranchero 500 XL Standard Cab Pickup 2-Door
1967,1969-1974,1979 Ford LTD Base Sedan 4-Door
1967,1969-1979 Ford LTD Base Hardtop 2-Door
1967-1970 Ford Mustang Shelby GT-500 Convertible 2-Door
1967-1970 Ford Mustang Shelby GT-500 Fastback 2-Door
1967-1973,1977-1979 Mercury Cougar Base Hardtop 2-Door
1967-1979 Ford Ranchero 500 Standard Cab Pickup 2-Door
1967-1979 Mercury Cougar XR-7 Hardtop 2-Door
1968 Ford Mustang Shelby GT-350 Convertible 2-Door
1968 Ford Mustang Shelby GT-350 Fastback 2-Door
1968 Ford Mustang Shelby GT-500KR Convertible 2-Door
1968 Ford Mustang Shelby GT-500KR Fastback 2-Door
1968 Lincoln Mark III,Continental Base Coupe 2-Door
1968,1970-1971 Ford Torino Base Hardtop 2-Door
1968,1971 Ford Torino GT Hardtop 2-Door
1968,1971-1974 Ford Galaxie 500 Base Hardtop 2-Door
1968-1969 Ford Bronco Roadster Sport Utility 2-Door
1968-1969 Ford Fairlane 500 Fastback 2-Door
1968-1969 Ford Galaxie 500 Base Convertible 2-Door
1968-1970 Ford Galaxie 500 Base Fastback 2-Door
1968-1970 Ford Galaxie 500 XL Convertible 2-Door
1968-1970 Ford Galaxie 500 XL Fastback 2-Door
1968-1970 Ford Torino GT Fastback 2-Door
1968-1971 Ford Torino Base Sedan 4-Door
1968-1971 Ford Torino GT Convertible 2-Door
1968-1971 Lincoln Mark III Base Coupe 2-Door
1968-1973 Ford Bronco Wagon Sport Utility 2-Door
1968-1974 Ford Galaxie 500 Base Sedan 4-Door
1968-1979 Ford Ranchero GT Standard Cab Pickup 2-Door
1969 Ford Fairlane Base Hardtop 2-Door
1969 Ford Mustang Boss 302 Fastback 2-Door
1969 Ford Mustang Boss 429 Fastback 2-Door
1969 Ford Torino Cobra Coupe 2-Door
1969 Mercury Comet Base Hardtop 2-Door
1969,1972-1974 Ford E-200 Econoline Base Standard Cargo Van 3-Door
1969,1972-1974 Ford E-200 Econoline Club Wagon Standard Passenger Van 3-Door
1969-1970 Ford Galaxie 500 Base Coupe 2-Door
1969-1970 Ford Galaxie 500 Base Hardtop 4-Door
1969-1970 Ford Galaxie 500,Torino Base Fastback 2-Door
1969-1970 Ford Torino Cobra Fastback 2-Door
1969-1970 Mercury Cougar Cobra Jet Hardtop 2-Door
1969-1971 Ford E-200 Econoline,E-100 Econoline Base Standard Cargo Van 3-Door
1969-1971 Ford Torino Squire Wagon 4-Door
1969-1973 Ford Mustang Base Fastback 2-Door
1969-1974 Ford E-100 Econoline,E-200 Econoline Base Standard Cargo Van 3-Door
1969-1974 Ford E-200 Econoline,E-100 Econoline Club Wagon Standard Passenger Van 3-Door
1970 Ford LTD,Torino Brougham Sedan 4-Door
1970 Ford Torino Super Cobra Jet Fastback 2-Door
1970 Ford Torino,Galaxie 500 Base Fastback 2-Door
1970 Mercury Cougar Boss 302 Hardtop 2-Door
1970 Mercury Cougar Boss 429 Hardtop 2-Door
1970-1971 Ford Torino Base Wagon 4-Door
1970-1971 Ford Torino Brougham Hardtop 2-Door
1970-1971 Ford Torino Brougham Wagon 4-Door
1970-1973 Ford Mustang Grande Hardtop 2-Door
1970-1973 Ford Mustang Mach 1 Fastback 2-Door
1970-1974 Ford E-200 Econoline Custom Wagon Standard Passenger Van 3-Door
1970-1974 Ford LTD Brougham Sedan 4-Door
1970-1976 Ford LTD Brougham Hardtop 2-Door
1970-1979 Ford Ranchero Squire Standard Cab Pickup 2-Door
1971 Ford Torino 500 Fastback 2-Door
1971 Ford Torino 500 Hardtop 2-Door
1971 Ford Torino 500 Sedan 4-Door
1971 Ford Torino 500 Wagon 4-Door
1971 Ford Torino Cobra Hardtop 2-Door
1971 Ford Torino Super Cobra Jet Hardtop 2-Door
1971-1972 Ford E-200 Econoline Chateau Wagon Standard Passenger Van 3-Door
1971-1972 Ford LTD Base Convertible 2-Door
1971-1979 Ford LTD Base Wagon 4-Door
1972-1975 Ford Gran Torino Sport Hardtop 2-Door
1972-1976 Ford Gran Torino Base Hardtop 2-Door
1972-1976 Ford Gran Torino Base Wagon 4-Door
1972-1976 Ford Gran Torino Squire Wagon 4-Door
1973 Ford Gran Torino Base Sedan 4-Door
1973 Ford Gran Torino Brougham Sedan 4-Door
1973-1976 Ford Gran Torino Brougham Hardtop 2-Door
1974 Ford Gran Torino Sport Wagon 4-Door
1974 Ford Gran Torino Squire Hardtop 2-Door
1974-1975 Ford Gran Torino Elite Hardtop 2-Door
1975 Ford Bronco Ranger Sport Utility 2-Door
1975,1978 Ford Bronco Northland Sport Utility 2-Door
1975-1976 Ford F-100,F-150 Custom Extended Cab Pickup 2-Door
1975-1976 Ford F-150,F-100 Custom Standard Cab Pickup 2-Door
1975-1976 Ford F-150,F-100 Ranger XLT Extended Cab Pickup 2-Door
1975-1976 Ford Gran Torino,LTD Brougham Hardtop 2-Door
1975-1976 Ford Gran Torino,Thunderbird Base Hardtop 2-Door
1975-1977 Ford Bronco Sport Sport Utility 2-Door
1975-1977 Ford Maverick Grabber Sedan 2-Door
1975-1977 Ford Maverick,Granada Base Sedan 4-Door
1975-1978 Ford E-250 Econoline Base Cutaway Van 2-Door
1975-1978 Ford E-250 Econoline Chateau Cutaway Van 2-Door
1975-1978 Ford E-250 Econoline Custom Cutaway Van 2-Door
1975-1978 Ford E-250 Econoline Northland Cutaway Van 2-Door
1975-1978 Ford E-250 Econoline,E-100 Econoline Northland Standard Cargo Van 2-Door
1975-1978 Ford E-250 Econoline,E-100 Econoline Northland Standard Passenger Van 2-Door
1975-1978 Ford F-100,F-150 Northland Standard Cab Pickup 2-Door
1975-1978 Ford F-150,F-100 Northland Cab & Chassis 2-Door
1975-1978 Ford F-150,F-100 Northland Extended Cab Pickup 2-Door
1975-1978 Ford LTD Landau Hardtop 2-Door
1975-1979 Ford F-100,F-150 Custom Cab & Chassis 2-Door
1975-1979 Ford F-100,F-150 Custom Extended Cab Pickup 2-Door
1975-1979 Ford F-100,F-150 Custom Standard Cab Pickup 2-Door
1975-1979 Ford F-100,F-150 Ranger Cab & Chassis 2-Door
1975-1979 Ford F-100,F-150 Ranger Extended Cab Pickup 2-Door
1975-1979 Ford F-100,F-150 Ranger XLT Cab & Chassis 2-Door
1975-1979 Ford F-100,F-150 Ranger XLT Extended Cab Pickup 2-Door
1975-1979 Ford F-100,F-150 Ranger XLT Standard Cab Pickup 2-Door
1975-1979 Ford Granada Base Sedan 4-Door
1975-1979 Ford Granada Ghia Sedan 4-Door
1975-1979 Ford LTD Country Squire Wagon 4-Door
1975-1979 Lincoln Continental Base Hardtop 2-Door
1975-1979 Mercury Grand Marquis Base Hardtop 2-Door
1975-1980 Ford E-250 Econoline Base Standard Cargo Van 2-Door
1975-1980 Ford E-250 Econoline Base Standard Passenger Van 2-Door
1975-1980 Ford E-250 Econoline Chateau Standard Cargo Van 2-Door
1975-1980 Ford E-250 Econoline Chateau Standard Passenger Van 2-Door
1975-1980 Ford E-250 Econoline Custom Standard Cargo Van 2-Door
1975-1980 Ford E-250 Econoline Custom Standard Passenger Van 2-Door
1975-1981 Ford F-100,F-150 Ranger Standard Cab Pickup 2-Door
1975-1981 Ford F-150 Ranger Extended Cab Pickup 2-Door
1975-1981 Ford F-150 Ranger XLT Extended Cab Pickup 2-Door
1975-1981 Ford F-150,F-100 Ranger XLT Standard Cab Pickup 2-Door
1975-1981,1984-1985 Ford F-150 Ranger Standard Cab Pickup 2-Door
1975-1982 Ford E-100 Econoline Base Standard Cargo Van 2-Door
1975-1982 Ford E-100 Econoline Base Standard Passenger Van 2-Door
1975-1982 Ford E-100 Econoline Chateau Standard Cargo Van 2-Door
1975-1982 Ford E-100 Econoline Chateau Standard Passenger Van 2-Door
1975-1982 Ford F-100 Custom Standard Cab Pickup 2-Door
1975-1982,1987 Ford F-150 Custom Extended Cab Pickup 2-Door
1975-1983 Ford E-100 Econoline Custom Standard Cargo Van 2-Door
1975-1983 Ford E-100 Econoline Custom Standard Passenger Van 2-Door
1975-1985,1987 Ford F-150 Custom Standard Cab Pickup 2-Door
1975-1986 Ford Bronco Custom Sport Utility 2-Door
1976 Ford F-150,F-100 Base Extended Cab Pickup 2-Door
1976 Ford F-150,F-100 Base Standard Cab Pickup 2-Door
1976-1978 Ford F-100,F-150 Base Cab & Chassis 2-Door
1976-1978 Ford F-100,F-150 Base Extended Cab Pickup 2-Door
1976-1978,1983 Ford F-100 Base Standard Cab Pickup 2-Door
1976-1978,1983-1986 Ford F-150 Base Extended Cab Pickup 2-Door
1976-1978,1983-1986 Ford F-150 Base Standard Cab Pickup 2-Door
1977 Ford F-100,F-150 XLT Standard Cab Pickup 2-Door
1977 Ford F-150,F-100 XLT Cab & Chassis 2-Door
1977 Ford F-150,F-100 XLT Extended Cab Pickup 2-Door
1977 Mercury Cougar Base Wagon 4-Door
1977 Mercury Cougar Brougham Hardtop 2-Door
1977 Mercury Cougar Villager Wagon 4-Door
1977,1983-1984 Ford F-150 XLT Extended Cab Pickup 2-Door
1977,1983-1984 Ford F-150 XLT Standard Cab Pickup 2-Door
1977-1978 Ford E-250 Econoline Northland Extended Cargo Van 2-Door
1977-1978 Ford E-250 Econoline Northland Extended Passenger Van 2-Door
1977-1978 Ford F-100,F-150 Base Standard Cab Pickup 2-Door
1977-1979 Ford Thunderbird Base Hardtop 2-Door
1977-1979,1981 Ford F-100 Ranger Standard Cab Pickup 2-Door
1977-1979,1981 Ford F-100 Ranger XLT Standard Cab Pickup 2-Door
1977-1980 Ford E-250 Econoline Base Extended Cargo Van 2-Door
1977-1980 Ford E-250 Econoline Base Extended Passenger Van 2-Door
1977-1980 Ford E-250 Econoline Chateau Extended Cargo Van 2-Door
1977-1980 Ford E-250 Econoline Chateau Extended Passenger Van 2-Door
1977-1980 Ford E-250 Econoline Custom Extended Cargo Van 2-Door
1977-1980 Ford E-250 Econoline Custom Extended Passenger Van 2-Door
1978 Ford E-100 Econoline Northland Standard Cargo Van 2-Door
1978 Ford E-100 Econoline Northland Standard Passenger Van 2-Door
1978 Ford Thunderbird Diamond Jubilee Hardtop 2-Door
1978-1979 Ford F-100,F-150 Ranger Lariat Extended Cab Pickup 2-Door
1978-1979 Ford F-150,F-100 Ranger Lariat Cab & Chassis 2-Door
1978-1979 Ford Granada ESS Sedan 4-Door
1978-1979 Ford Thunderbird Town Landau Hardtop 2-Door
1978-1979,1981 Ford F-100 Ranger Lariat Standard Cab Pickup 2-Door
1978-1981 Ford Bronco Ranger XLT Sport Utility 2-Door
1978-1981 Ford F-150 Ranger Lariat Extended Cab Pickup 2-Door
1978-1981 Ford F-150,F-100 Ranger Lariat Standard Cab Pickup 2-Door
1979 Ford F-100 Custom Cab & Chassis 2-Door
1979 Ford F-100 Ranger Cab & Chassis 2-Door
1979 Ford F-100 Ranger Lariat Cab & Chassis 2-Door
1979 Ford F-100 Ranger XLT Cab & Chassis 2-Door
1979 Ford LTD Landau Sedan 4-Door
1979 Ford Thunderbird Heritage Hardtop 2-Door
1979-1980 Mercury Grand Marquis Base Sedan 4-Door
1979-1980 Mercury Grand Marquis Colony Park Wagon 4-Door
1979-1982 Ford E-150 Econoline Chateau Extended Cargo Van 2-Door
1979-1982 Ford E-150 Econoline Chateau Extended Passenger Van 2-Door
1979-1982 Ford E-150 Econoline Chateau Standard Cargo Van 2-Door
1979-1982 Ford E-150 Econoline Chateau Standard Passenger Van 2-Door
1979-1982,1984-1986 Ford E-150 Econoline Base Extended Cargo Van 2-Door
1979-1982,1984-1986 Ford E-150 Econoline Base Extended Passenger Van 2-Door
1979-1982,1984-1986 Ford E-150 Econoline Base Standard Cargo Van 2-Door
1979-1982,1984-1986 Ford E-150 Econoline Base Standard Passenger Van 2-Door
1979-1983,1987-1988 Ford E-150 Econoline Custom Extended Cargo Van 2-Door
1979-1983,1987-1988 Ford E-150 Econoline Custom Extended Passenger Van 2-Door
1979-1983,1987-1988 Ford E-150 Econoline Custom Standard Cargo Van 2-Door
1979-1983,1987-1988 Ford E-150 Econoline Custom Standard Passenger Van 2-Door
1980 Ford E-100 Econoline,E-250 Econoline Base Standard Passenger Van 2-Door
1980 Ford E-100 Econoline,E-250 Econoline Chateau Standard Cargo Van 2-Door
1980 Ford E-100 Econoline,E-250 Econoline Chateau Standard Passenger Van 2-Door
1980 Ford E-100 Econoline,E-250 Econoline Custom Standard Cargo Van 2-Door
1980 Ford E-100 Econoline,E-250 Econoline Custom Standard Passenger Van 2-Door
1980 Ford E-250 Econoline,E-100 Econoline Base Standard Cargo Van 2-Door
1982,1985-1987 Ford F-150 XLT Lariat Extended Cab Pickup 2-Door
1982,1985-1987 Ford F-150 XLT Lariat Standard Cab Pickup 2-Door
1982-1983 Ford Bronco XLS Sport Utility 2-Door
1982-1983 Ford Bronco XLT Lariat Sport Utility 2-Door
1982-1983 Ford F-100 XL Standard Cab Pickup 2-Door
1982-1983 Ford F-100 XLT Lariat Standard Cab Pickup 2-Door
1982-1983 Ford F-150 XLS Extended Cab Pickup 2-Door
1982-1983 Ford F-150,F-100 XLS Standard Cab Pickup 2-Door
1982-1987 Ford F-150 XL Extended Cab Pickup 2-Door
1982-1987 Ford F-150 XL Standard Cab Pickup 2-Door
1983 Ford E-100 Econoline XL Standard Cargo Van 2-Door
1983 Ford E-100 Econoline XL Standard Passenger Van 2-Door
1983-1988 Ford E-150 Econoline XL Extended Cargo Van 2-Door
1983-1988 Ford E-150 Econoline XL Extended Passenger Van 2-Door
1983-1988 Ford E-150 Econoline XL Standard Cargo Van 2-Door
1983-1988 Ford E-150 Econoline XL Standard Passenger Van 2-Door
1984-1986 Ford Bronco XLT Sport Utility 2-Door
1985-1986 Ford Bronco Eddie Bauer Sport Utility 2-Door
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