The Detroit Truetrac was the first helical gear differential ever introduced into the automotive aftermarket as an Eaton brand. It remains the leading helical gear-type limited slip differential in the industry. Detroit Truetrac's proven helical gear design eliminates the need for wearable parts, resulting in maintenance free traction recognized not only for its toughness, but its smooth and quiet operation as well.Proven design, low cost and effective performance all make the Detroit Truetrac limited slip differential the ideal choice for a wide variety of vehicle applications. No maintenance - Just Traction.

Vehicle Fitment

Years	Make	Model	Trim
1963	Ford	300	Base
1986–1987	Ford	Aerostar	Base
1986–1987	Ford	Aerostar	XL
1986–1987	Ford	Aerostar	XLT
1957–1968	Ford	Anglia	Base
1964	Ford	Anglia	Super
1968–1973	Ford	Bronco
1966–1974	Ford	Bronco	Base
1975–1987	Ford	Bronco	Custom
1985–1987	Ford	Bronco	Eddie Bauer
1975, 1978	Ford	Bronco	Northland
1975	Ford	Bronco	Ranger
1978–1981	Ford	Bronco	Ranger XLT
1968–1969	Ford	Bronco	Roadster
1975–1977	Ford	Bronco	Sport
1982–1983	Ford	Bronco	XLS
1984–1987	Ford	Bronco	XLT
1982–1983	Ford	Bronco	XLT Lariat
1984–1986	Ford	Bronco II	Base
1984–1987	Ford	Bronco II	Eddie Bauer
1987	Ford	Bronco II	XL
1984–1985	Ford	Bronco II	XLS
1984–1987	Ford	Bronco II	XLT
1962–1965	Ford	Capri	Base
1964	Ford	Capri	GT
1957–1959	Ford	Club	Base
1962–1967	Ford	Club Wagon	Base
1966–1967	Ford	Club Wagon	Custom
1962–1963, 1966–1967	Ford	Club Wagon	Deluxe
1962–1964	Ford	Consul	Base
1957–1961	Ford	Consul	MK II
1963–1970	Ford	Cortina	Base
1964	Ford	Cortina	GT
1966	Ford	Cortina	Lotus
1957–1974	Ford	Country Sedan	Base
1957–1974	Ford	Country Squire	Base
1972–1982	Ford	Courier	Base
1979–1982	Ford	Courier	XLT
1957, 1964–1972	Ford	Custom	Base
1957–1960	Ford	Custom 300	Base
1964–1977	Ford	Custom 500	Base
1975–1977	Ford	Custom 500	Ranch Wagon
1957–1958	Ford	DEL RIO Wagon	Base
1969–1972	Ford	E-100 Econoline	Base
1969–1972	Ford	E-100 Econoline	Club Wagon
1969–1972	Ford	E-200 Econoline	Base
1971–1972	Ford	E-200 Econoline	Chateau Wagon
1969–1972	Ford	E-200 Econoline	Club Wagon
1970–1972	Ford	E-200 Econoline	Custom Wagon
1969–1972	Ford	E-300 Econoline	Base
1970–1972	Ford	E-300 Econoline	Chateau Wagon
1969–1972	Ford	E-300 Econoline	Club Wagon
1971–1972	Ford	E-300 Econoline	Custom Wagon
1961–1967	Ford	Econoline	Base
1975–1976	Ford	Elite	Base
1957–1961	Ford	Escort	Base
1976–1978, 1983–1986	Ford	F-150	Base
1975–1982, 1987	Ford	F-150	Custom
1975–1978	Ford	F-150	Northland
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, 1983–1984	Ford	F-150	XLT
1982, 1985–1987	Ford	F-150	XLT Lariat
1957–1966, 1968–1970	Ford	Fairlane	500
1966	Ford	Fairlane	500xl
1957–1969	Ford	Fairlane	Base
1978–1980	Ford	Fairmont	Base
1978–1980	Ford	Fairmont	Futura
1960–1970	Ford	Falcon	Base
1962	Ford	Falcon	Deluxe
1963–1970	Ford	Falcon	Futura
1963–1965	Ford	Falcon	Futura Sprint
1978–1980	Ford	Fiesta	Base
1971–1972	Ford	G-100	Postal
1959–1967	Ford	Galaxie	Base
1961	Ford	Galaxie	Club Victoria
1960	Ford	Galaxie	Special
1961	Ford	Galaxie	Starliner
1961	Ford	Galaxie	Sunliner
1961	Ford	Galaxie	Town Victoria
1962–1974	Ford	Galaxie 500	Base
1962–1964	Ford	Galaxie 500	Sunliner
1962–1964	Ford	Galaxie 500	Victoria
1962–1970	Ford	Galaxie 500	XL
1972–1976	Ford	Gran Torino	Base
1973–1976	Ford	Gran Torino	Brougham
1974–1975	Ford	Gran Torino	Elite
1972–1975	Ford	Gran Torino	Sport
1972–1976	Ford	Gran Torino	Squire
1975–1980	Ford	Granada	Base
1978–1980	Ford	Granada	ESS
1975–1980	Ford	Granada	Ghia
1964–1965, 1968	Ford	Gt40	Base
1966–1969	Ford	Gt40	MK III
1965–1980	Ford	LTD	Base
1970–1976	Ford	LTD	Brougham
1975–1980	Ford	LTD	Country Squire
1980	Ford	LTD	Crown Victoria
1975–1979	Ford	LTD	Landau
1980	Ford	LTD	S
1977–1979	Ford	LTD II	Base
1977–1978	Ford	LTD II	Brougham
1979	Ford	LTD II	Landau
1977–1979	Ford	LTD II	S
1977	Ford	LTD II	Squire
1970–1977	Ford	Maverick	Base
1975–1977	Ford	Maverick	Grabber
1964–1973, 1979–1980	Ford	Mustang	Base
1969–1971	Ford	Mustang	Boss 302
1971–1972	Ford	Mustang	Boss 351
1969–1970	Ford	Mustang	Boss 429
1979–1980	Ford	Mustang	Ghia
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
1974	Ford	Mustang II	2+2
1974–1978	Ford	Mustang II	Base
1974–1978	Ford	Mustang II	Ghia
1974–1978	Ford	Mustang II	Mach 1
1971–1980	Ford	Pinto	Base
1976–1980	Ford	Pinto	Pony
1976–1980	Ford	Pinto	Squire
1957–1961	Ford	Prefect	Base
1957–1974	Ford	Ranch Wagon	Base
1970	Ford	Ranch Wagon	Police Cruiser
1983, 1985–1986	Ford	Ranger	Base
1987	Ford	Ranger	Custom
1984, 1986–1987	Ford	Ranger	S
1986–1987	Ford	Ranger	STX
1983–1986	Ford	Ranger	XL
1983–1985	Ford	Ranger	XLS
1983–1987	Ford	Ranger	XLT
1957–1959	Ford	Skyliner	Base
1963–1964	Ford	Sprint	Base
1957–1960	Ford	Squire	Base
1960	Ford	Starliner	Base
1962–1965	Ford	Station BUS	Base
1957–1960	Ford	Sunliner	Base
1957–1960	Ford	Taunus
1960	Ford	Taunus	12M Super
1961–1962	Ford	Taunus	Base
1957–1980	Ford	Thunderbird	Base
1978	Ford	Thunderbird	Diamond Jubilee
1979	Ford	Thunderbird	Heritage
1980	Ford	Thunderbird	Silver Anniversary
1978–1980	Ford	Thunderbird	Town Landau
1971	Ford	Torino	500
1968–1976	Ford	Torino	Base
1970–1971	Ford	Torino	Brougham
1969–1971	Ford	Torino	Cobra
1968–1971	Ford	Torino	GT
1969–1971	Ford	Torino	Squire
1970–1971	Ford	Torino	Super Cobra JET
1957–1960	Ford	Victoria	Base
1962	Ford	Zephyr	Base
1957–1961	Ford	Zephyr	MK II
1963	Ford	Zephyr	MK III
1962	Ford	Zodiac	Base
1957–1961	Ford	Zodiac	MK II
1963–1964	Ford	Zodiac	MK III
1957–1959	Lincoln	Capri	Base
1958–1980	Lincoln	Continental	Base
1957	Lincoln	Mark II	Base
1968–1971	Lincoln	Mark III	Base
1972–1976	Lincoln	Mark IV	Base
1977–1979	Lincoln	Mark V	Base
1980	Lincoln	Mark VI	Base
1957–1960	Lincoln	Premier	Base
1977–1980	Lincoln	Versailles	Base
1975, 1977–1980	Mercury	Bobcat	Base
1976	Mercury	Bobcat	MPG Runabout
1976–1980	Mercury	Bobcat	Runabout
1976	Mercury	Bobcat	S Runabout
1976–1980	Mercury	Bobcat	Villager
1967	Mercury	Brougham	Base
1964–1967	Mercury	Caliente	Base
1966–1967, 1969–1977, 1979–1980	Mercury	Capri	Base
1979–1980	Mercury	Capri	Ghia
1957–1974	Mercury	Colony Park	Base
1964–1965	Mercury	Comet	404
1960–1969, 1971–1977	Mercury	Comet	Base
1962–1963	Mercury	Comet	Custom
1961–1963	Mercury	Comet	S-22
1957–1968	Mercury	Commuter	Base
1967–1973, 1977–1979	Mercury	Cougar	Base
1969–1970	Mercury	Cougar	Boss 302
1969–1970	Mercury	Cougar	Boss 429
1977	Mercury	Cougar	Brougham
1969–1970	Mercury	Cougar	Cobra JET
1977	Mercury	Cougar	Villager
1967–1980	Mercury	Cougar	XR-7
1959–1960, 1963	Mercury	Country Cruiser	Base
1964–1971	Mercury	Cyclone	Base
1969	Mercury	Cyclone	CJ
1970–1971	Mercury	Cyclone	GT
1969–1971	Mercury	Cyclone	Spoiler
1975–1980	Mercury	Grand Marquis	Base
1979–1980	Mercury	Grand Marquis	Colony Park
1963–1970	Mercury	Marauder	Base
1969–1970	Mercury	Marauder	X-100
1967–1980	Mercury	Marquis	Base
1969–1980	Mercury	Marquis	Brougham
1975–1976	Mercury	Marquis	Colony Park
1957–1958	Mercury	Medalist	Base
1961	Mercury	Meteor	600
1961–1963	Mercury	Meteor	Base
1962–1963	Mercury	Meteor	Custom
1962–1963	Mercury	Meteor	S-33
1975–1980	Mercury	Monarch	Base
1975–1977	Mercury	Monarch	Ghia
1976	Mercury	Monarch	Grand Ghia
1957–1960, 1964–1968	Mercury	Montclair	Base
1958	Mercury	Montclair	Turnpike Cruiser
1968–1976	Mercury	Montego	Base
1975	Mercury	Montego	Brougham
1972–1973	Mercury	Montego	GT
1968–1976	Mercury	Montego	MX
1970–1974, 1976	Mercury	Montego	MX Brougham
1976	Mercury	Montego	MX Villager
1970–1975	Mercury	Montego	Villager
1957–1974	Mercury	Monterey	Base
1962–1963, 1969–1974	Mercury	Monterey	Custom
1962	Mercury	Monterey	Custom S-55
1963, 1966–1967	Mercury	Monterey	S-55
1958–1960, 1964–1968	Mercury	Park Lane	Base
1957	Mercury	Turnpike Cruiser	Base
1962–1967	Mercury	Villager	Base
1957–1959, 1966–1967	Mercury	Voyager	Base
1978–1980	Mercury	Zephyr
1978–1980	Mercury	Zephyr	Base