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
1973–1975	Buick	Apollo	Base
1975	Buick	Apollo	SR
1980–1981, 1984	Buick	Century
1975–1977, 1980–1981	Buick	Century	Base
1975–1979, 1982–1989	Buick	Century	Custom
1985–1989	Buick	Century	Estate Wagon
1976	Buick	Century	Indianapolis 500 Pace CAR
1978–1989	Buick	Century	Limited
1975	Buick	Century	Luxus
1984	Buick	Century	Olympia Limited
1975–1979	Buick	Century	Special
1978–1981	Buick	Century	Sport
1983–1986	Buick	Century	T-Type
1976–1979	Buick	Electra	225
1975	Buick	Electra	Custom
1980–1989	Buick	Electra	Estate Wagon
1975–1989	Buick	Electra	Limited
1978–1989	Buick	Electra	Park Avenue
1989	Buick	Electra	Park Avenue Ultra
1985–1989	Buick	Electra	T-Type
1975–1983	Buick	Estate Wagon	Base
1975–1981, 1987–1989	Buick	Lesabre	Base
1985	Buick	Lesabre	Collector's Edition
1975–1978, 1982–1989	Buick	Lesabre	Custom
1977	Buick	Lesabre	Custom Sport
1985–1989	Buick	Lesabre	Estate Wagon
1979–1989	Buick	Lesabre	Limited
1982	Buick	Lesabre	Limited Edition F/E
1978–1981	Buick	Lesabre	Sport
1987	Buick	Lesabre	T-Type
1976–1979	Buick	Opel	Base
1977–1979	Buick	Opel	Deluxe
1978–1979	Buick	Opel	Sport
1988–1989	Buick	Reatta	Base
1975–1987	Buick	Regal	Base
1988–1989	Buick	Regal	Custom
1982–1983	Buick	Regal	Estate Wagon
1987	Buick	Regal	GNX
1989	Buick	Regal	Gran Sport
1984–1987	Buick	Regal	Grand National
1978–1989	Buick	Regal	Limited
1982	Buick	Regal	Limited Turbo
1978–1982	Buick	Regal	Sport
1976–1977	Buick	Regal	SR
1983–1986	Buick	Regal	T-Type
1975–1985	Buick	Riviera	Base
1975	Buick	Riviera	GS
1982	Buick	Riviera	Limited Edition
1983–1989	Buick	Riviera	Luxury
1978	Buick	Riviera	Lxxv Anniversary Edition
1979–1980	Buick	Riviera	S
1976	Buick	Riviera	Sport
1976	Buick	Riviera	SR
1981–1989	Buick	Riviera	T-Type
1983	Buick	Riviera	XX Anniversary Edition
1975–1980	Buick	Skyhawk	Base
1982–1989	Buick	Skyhawk	Custom
1980	Buick	Skyhawk	Designers' Accent Edition
1982–1987	Buick	Skyhawk	Limited
1979–1980	Buick	Skyhawk	Road Hawk
1975–1980	Buick	Skyhawk	S
1988–1989	Buick	Skyhawk	SE
1986–1987	Buick	Skyhawk	Sport
1983–1987	Buick	Skyhawk	T-Type
1975–1982	Buick	Skylark	Base
1978–1979, 1983–1989	Buick	Skylark	Custom
1980–1989	Buick	Skylark	Limited
1976–1979	Buick	Skylark	S
1978, 1980–1983	Buick	Skylark	Sport
1975–1977	Buick	Skylark	SR
1983–1984	Buick	Skylark	T-Type
1986–1987	Buick	Somerset	Custom
1986–1987	Buick	Somerset	Limited
1986	Buick	Somerset	T-Type
1985	Buick	Somerset Regal	Base
1985	Buick	Somerset Regal	Limited
1985–1989	Chevrolet	Astro	Base
1985–1989	Chevrolet	Astro	CL
1985–1989	Chevrolet	Astro	CS
1987–1989	Chevrolet	Astro	LT
1975	Chevrolet	BEL AIR	Base
1987–1989	Chevrolet	Beretta	Base
1989	Chevrolet	Beretta	GT
1977–1987	Chevrolet	Camaro
1975–1980, 1988	Chevrolet	Camaro	Base
1979–1986	Chevrolet	Camaro	Berlinetta
1985–1989	Chevrolet	Camaro	Iroc-Z
1975–1978, 1987	Chevrolet	Camaro	LT
1976–1978	Chevrolet	Camaro	LT Rally Sport
1976–1980	Chevrolet	Camaro	Rally Sport
1975, 1989	Chevrolet	Camaro	RS
1981–1987	Chevrolet	Camaro	Sport
1982	Chevrolet	Camaro	Z28 Indianapolis 500 Pace CAR
1986–1992	Chevrolet	Caprice	Base
1975–1992	Chevrolet	Caprice	Classic
1986–1990	Chevrolet	Caprice	Classic Brougham
1976–1978, 1981–1982	Chevrolet	Caprice	Classic Estate
1976–1981	Chevrolet	Caprice	Classic Landau
1987–1990	Chevrolet	Caprice	Classic LS Brougham
1991–1992	Chevrolet	Caprice	Classic LTZ
1975–1976, 1979–1980	Chevrolet	Caprice	Classic Sport
1975	Chevrolet	Caprice	Estate Wagon
1986–1989	Chevrolet	Cavalier
1982–1989	Chevrolet	Cavalier	Base
1982	Chevrolet	Cavalier	Cadet
1982–1986	Chevrolet	Cavalier	CL
1983–1987	Chevrolet	Cavalier	CS
1984	Chevrolet	Cavalier	Olympic
1986–1989	Chevrolet	Cavalier	RS
1984–1985	Chevrolet	Cavalier	Type-10
1988–1989	Chevrolet	Cavalier	VL
1985–1987	Chevrolet	Celebrity
1982–1989	Chevrolet	Celebrity	Base
1982–1983, 1989	Chevrolet	Celebrity	CL
1985	Chevrolet	Celebrity	Classic
1982	Chevrolet	Celebrity	CS
1984–1989	Chevrolet	Celebrity	Eurosport
1982	Chevrolet	Chevette
1976–1985	Chevrolet	Chevette	Base
1984–1987	Chevrolet	Chevette	CS
1977	Chevrolet	Chevette	Rally Sport
1976	Chevrolet	Chevette	Rallye
1983	Chevrolet	Chevette	S
1977	Chevrolet	Chevette	Sandpiper
1976–1983	Chevrolet	Chevette	Scooter
1976	Chevrolet	Chevette	Sport
1976	Chevrolet	Chevette	Woody
1980–1983	Chevrolet	Citation	Base
1980	Chevrolet	Citation	Club
1980	Chevrolet	Citation	Custom
1980–1983	Chevrolet	Citation	X-11
1984–1985	Chevrolet	Citation II	Base
1984–1985	Chevrolet	Citation II	X-11
1987–1989	Chevrolet	Corsica	Base
1987–1988	Chevrolet	Corsica	LT
1989	Chevrolet	Corsica	LTZ
1988	Chevrolet	Corvette	35th Anniversary Edition
1977–1982, 1984–1989	Chevrolet	Corvette	Base
1982	Chevrolet	Corvette	Collector's Edition
1978, 1986	Chevrolet	Corvette	Indianapolis 500 Pace CAR
1978	Chevrolet	Corvette	Silver Anniversary Edition
1975–1976	Chevrolet	Corvette	Stingray
1977–1987	Chevrolet	EL Camino	Base
1977	Chevrolet	EL Camino	Classic
1977–1978, 1981–1986	Chevrolet	EL Camino	Conquista
1979–1981	Chevrolet	EL Camino	Royal Knight
1977–1987	Chevrolet	EL Camino	SS
1981–1982	Chevrolet	Impala
1975–1985	Chevrolet	Impala	Base
1975–1977	Chevrolet	Impala	Custom
1976	Chevrolet	Impala	Custom Landau
1977–1979	Chevrolet	Impala	Landau
1976	Chevrolet	Impala	S
1975–1976, 1979–1980	Chevrolet	Impala	Sport
1975–1976	Chevrolet	Laguna
1975	Chevrolet	Laguna	Base
1973–1974, 1979–1980	Chevrolet	Malibu
1973–1981	Chevrolet	Malibu	Base
1974–1983	Chevrolet	Malibu	Classic
1975–1976, 1978–1980	Chevrolet	Malibu	Classic Estate
1976–1981	Chevrolet	Malibu	Classic Landau
1977, 1979–1980	Chevrolet	Malibu	Classic Sport
1976, 1979	Chevrolet	Malibu	Landau
1979	Chevrolet	Malibu	Police
1977, 1979–1980	Chevrolet	Malibu	Sport
1979, 1981–1988	Chevrolet	Monte Carlo	Base
1983	Chevrolet	Monte Carlo	CL
1976, 1978–1981	Chevrolet	Monte Carlo	Landau
1986–1988	Chevrolet	Monte Carlo	LS
1975–1977	Chevrolet	Monte Carlo	S
1978, 1980	Chevrolet	Monte Carlo	Sport
1983–1988	Chevrolet	Monte Carlo	SS
1975–1980	Chevrolet	Monza	2+2
1978–1980	Chevrolet	Monza	2+2 Sport
1976–1980	Chevrolet	Monza	2+2 Spyder
1976, 1978–1980	Chevrolet	Monza	Base
1977	Chevrolet	Monza	Mirage
1975, 1978–1979	Chevrolet	Monza	S
1978	Chevrolet	Monza	Sport
1980	Chevrolet	Monza	Spyder
1976–1977	Chevrolet	Monza	Towne Coupe
1976–1977	Chevrolet	Monza	Towne Coupe Cabriolet
1976–1977	Chevrolet	Monza	Towne Coupe Sport
1976	Chevrolet	Monza	Towne Coupe Spyder
1975–1979, 1985–1988	Chevrolet	Nova	Base
1985–1988	Chevrolet	Nova	CL
1976–1977	Chevrolet	Nova	Concours
1975, 1978–1979	Chevrolet	Nova	Custom
1975	Chevrolet	Nova	LN
1975–1978	Chevrolet	Nova	Police
1977–1979	Chevrolet	Nova	Rally
1976	Chevrolet	Nova	SS
1988	Chevrolet	Nova	Twin CAM
1983–1989	Chevrolet	S10	Base
1983–1989	Chevrolet	S10	Durango
1983–1989	Chevrolet	S10	Sport
1983–1989	Chevrolet	S10	Tahoe
1985–1988	Chevrolet	Spectrum	Base
1987–1988	Chevrolet	Spectrum	CL
1987–1988	Chevrolet	Spectrum	CL Plus
1987–1988	Chevrolet	Spectrum	Express
1987–1988	Chevrolet	Spectrum	Turbo
1985–1988	Chevrolet	Sprint	Base
1986–1988	Chevrolet	Sprint	ER
1987–1988	Chevrolet	Sprint	Metro
1986	Chevrolet	Sprint	Plus
1987–1988	Chevrolet	Sprint	Turbo
1976–1977	Chevrolet	Vega
1975–1977	Chevrolet	Vega	Base
1975–1976	Chevrolet	Vega	Cosworth
1975	Chevrolet	Vega	Estate Wagon
1976–1977	Chevrolet	Vega	GT
1975	Chevrolet	Vega	LX
1975	Chevrolet	Vega	Panel Express
1976–1977	Chevrolet	Vega	Sport
1975–1981	Oldsmobile	98	Luxury
1975–1989	Oldsmobile	98	Regency
1982–1989	Oldsmobile	98	Regency Brougham
1987	Oldsmobile	98	Regency Grande
1987–1989	Oldsmobile	98	Regency Touring
1985	Oldsmobile	Calais	500
1985–1987	Oldsmobile	Calais	Base
1986	Oldsmobile	Calais	ES
1986–1987	Oldsmobile	Calais	GT
1985–1987	Oldsmobile	Calais	Supreme
1975–1989	Oldsmobile	Custom Cruiser	Base
1975–1976	Oldsmobile	Custom Cruiser	Panel
1975, 1977	Oldsmobile	Cutlass	442
1975, 1980	Oldsmobile	Cutlass	Base
1980–1981	Oldsmobile	Cutlass	Brougham
1977	Oldsmobile	Cutlass	Colonnade
1976–1977	Oldsmobile	Cutlass	Colonnade S
1980–1981	Oldsmobile	Cutlass	LS
1975–1977	Oldsmobile	Cutlass	S
1976–1979	Oldsmobile	Cutlass	Vista Cruiser
1979	Oldsmobile	Cutlass	Vista Cruiser Brougham
1978–1984, 1988–1989	Oldsmobile	Cutlass Calais	Base
1988–1989	Oldsmobile	Cutlass Calais	GT
1983–1984	Oldsmobile	Cutlass Calais	Hurst
1988–1989	Oldsmobile	Cutlass Calais	International
1989	Oldsmobile	Cutlass Calais	S
1988–1989	Oldsmobile	Cutlass Calais	SL
1982–1983, 1988–1989	Oldsmobile	Cutlass Ciera	Base
1982–1988	Oldsmobile	Cutlass Ciera	Brougham
1984–1985	Oldsmobile	Cutlass Ciera	Cruiser LS
1983, 1985–1986	Oldsmobile	Cutlass Ciera	ES
1985–1987, 1989	Oldsmobile	Cutlass Ciera	GT
1985–1986	Oldsmobile	Cutlass Ciera	Holiday
1988–1989	Oldsmobile	Cutlass Ciera	International
1982–1988	Oldsmobile	Cutlass Ciera	LS
1986–1988	Oldsmobile	Cutlass Ciera	S
1986–1989	Oldsmobile	Cutlass Ciera	SL
1980–1983, 1989	Oldsmobile	Cutlass Cruiser	Base
1980–1981, 1987	Oldsmobile	Cutlass Cruiser	Brougham
1988	Oldsmobile	Cutlass Cruiser	Brougham LS
1987–1988	Oldsmobile	Cutlass Cruiser	LS
1988–1989	Oldsmobile	Cutlass Cruiser	SL
1978–1979, 1985–1986	Oldsmobile	Cutlass Salon	442
1975–1980, 1985–1987	Oldsmobile	Cutlass Salon	Base
1978–1980	Oldsmobile	Cutlass Salon	Brougham
1979	Oldsmobile	Cutlass Salon	Hurst
1987	Oldsmobile	Cutlass Supreme	442
1975–1989	Oldsmobile	Cutlass Supreme	Base
1977–1987	Oldsmobile	Cutlass Supreme	Brougham
1988	Oldsmobile	Cutlass Supreme	Classic
1988	Oldsmobile	Cutlass Supreme	Classic Brougham
1976–1977	Oldsmobile	Cutlass Supreme	Colonnade
1975	Oldsmobile	Cutlass Supreme	Cruiser
1975	Oldsmobile	Cutlass Supreme	Hurst
1988	Oldsmobile	Cutlass Supreme	Indy 500 Pace CAR
1988–1989	Oldsmobile	Cutlass Supreme	International
1981, 1985	Oldsmobile	Cutlass Supreme	LS
1988–1989	Oldsmobile	Cutlass Supreme	SL
1976	Oldsmobile	Cutlass Tiara	Base
1975–1983	Oldsmobile	Delta 88	Base
1980–1981	Oldsmobile	Delta 88	Holiday
1975–1989	Oldsmobile	Delta 88	Royale
1980–1989	Oldsmobile	Delta 88	Royale Brougham
1984–1985	Oldsmobile	Delta 88	Royale Brougham LS
1984–1988	Oldsmobile	Firenza	Base
1984–1985	Oldsmobile	Firenza	Brougham LX
1984–1985	Oldsmobile	Firenza	Brougham SX
1984, 1986–1988	Oldsmobile	Firenza	Cruiser
1983–1986	Oldsmobile	Firenza	Cruiser LX
1983	Oldsmobile	Firenza	Cruiser S
1983–1985	Oldsmobile	Firenza	Cruiser SX
1984–1985	Oldsmobile	Firenza	ES
1984–1987	Oldsmobile	Firenza	GT
1986–1987	Oldsmobile	Firenza	LC
1982–1983, 1986–1987	Oldsmobile	Firenza	LX
1982–1984, 1986–1987	Oldsmobile	Firenza	S
1982–1983	Oldsmobile	Firenza	SX
1976–1977	Oldsmobile	Omega
1975–1984	Oldsmobile	Omega	Base
1976–1984	Oldsmobile	Omega	Brougham
1978–1979	Oldsmobile	Omega	Brougham LS
1977	Oldsmobile	Omega	Deluxe
1981–1984	Oldsmobile	Omega	ES
1983	Oldsmobile	Omega	ESC
1975	Oldsmobile	Omega	Salon
1981	Oldsmobile	Omega	Sport
1976–1978, 1980–1981	Oldsmobile	Omega	SX
1975–1980	Oldsmobile	Starfire	Base
1977–1980	Oldsmobile	Starfire	Firenza
1976–1980	Oldsmobile	Starfire	GT
1975	Oldsmobile	Starfire	S
1976–1980	Oldsmobile	Starfire	SX
1988–1989	Oldsmobile	Toronado	Base
1975–1987	Oldsmobile	Toronado	Brougham
1985	Oldsmobile	Toronado	Caliente
1975–1976	Oldsmobile	Toronado	Custom
1987–1989	Oldsmobile	Toronado	Trofeo
1977	Oldsmobile	Toronado	XS
1980–1981	Oldsmobile	Toronado	XSC
1977–1979	Oldsmobile	Toronado	XSR
1975	Oldsmobile	Vista Cruiser	Base
1982–1989	Pontiac	6000	Base
1982–1989	Pontiac	6000	LE
1986–1988	Pontiac	6000	SE
1989	Pontiac	6000	Special Edition
1983–1989	Pontiac	6000	STE
1975–1977	Pontiac	Astre	Base
1975–1976	Pontiac	Astre	Custom
1975	Pontiac	Astre	GT
1975	Pontiac	Astre	GT Safari
1975	Pontiac	Astre	S
1975	Pontiac	Astre	S Safari
1975, 1977	Pontiac	Astre	Safari
1975	Pontiac	Astre	SJ
1975	Pontiac	Astre	SJ Safari
1975–1987	Pontiac	Bonneville	Base
1976–1986	Pontiac	Bonneville	Brougham
1984–1989	Pontiac	Bonneville	LE
1978–1981	Pontiac	Bonneville	Safari
1988–1989	Pontiac	Bonneville	SE
1988–1989	Pontiac	Bonneville	SSE
1975–1981	Pontiac	Catalina	Base
1975–1981	Pontiac	Catalina	Safari
1984–1985	Pontiac	Fiero	Base
1988	Pontiac	Fiero	Formula
1985–1988	Pontiac	Fiero	GT
1984–1987	Pontiac	Fiero	SE
1984–1988	Pontiac	Fiero	Sport
1986–1988	Pontiac	Fiero	Value Leader
1975–1989	Pontiac	Firebird	Base
1975–1981	Pontiac	Firebird	Esprit
1975–1981, 1989	Pontiac	Firebird	Formula
1982–1986	Pontiac	Firebird	S/E
1975–1989	Pontiac	Firebird	Trans AM
1989	Pontiac	Firebird	Trans AM GTA
1989	Pontiac	Firebird	Trans AM GTA SE
1975, 1978–1980, 1985–1988	Pontiac	Grand AM	Base
1985–1989	Pontiac	Grand AM	LE
1986–1989	Pontiac	Grand AM	SE
1975–1981	Pontiac	Grand Lemans	Base
1975, 1977–1981	Pontiac	Grand Lemans	Safari
1976–1989	Pontiac	Grand Prix	Base
1981–1987	Pontiac	Grand Prix	Brougham
1984–1989	Pontiac	Grand Prix	LE
1975, 1977–1983	Pontiac	Grand Prix	LJ
1988–1989	Pontiac	Grand Prix	SE
1975–1980	Pontiac	Grand Prix	SJ
1975–1978	Pontiac	Grand Safari	Base
1975	Pontiac	Grandville	Brougham
1982–1983	Pontiac	J2000	Base
1982–1983	Pontiac	J2000	LE
1982–1983	Pontiac	J2000	SE
1988	Pontiac	Lemans	Aerocoupe
1988	Pontiac	Lemans	Aerocoupe YL
1975–1981, 1988	Pontiac	Lemans	Base
1989	Pontiac	Lemans	GSE
1989	Pontiac	Lemans	LE
1975, 1977–1981	Pontiac	Lemans	Safari
1988–1989	Pontiac	Lemans	SE
1975–1977	Pontiac	Lemans	Sport
1988–1989	Pontiac	Lemans	Value Leader
1983–1986	Pontiac	Parisienne	Base
1983–1986	Pontiac	Parisienne	Brougham
1977–1984	Pontiac	Phoenix	Base
1984	Pontiac	Phoenix	LE
1978–1983	Pontiac	Phoenix	LJ
1984	Pontiac	Phoenix	SE
1978–1979, 1982–1983	Pontiac	Phoenix	SJ
1987–1989	Pontiac	Safari	Base
1976–1980, 1984–1988	Pontiac	Sunbird	Base
1986–1989	Pontiac	Sunbird	GT
1984–1985, 1989	Pontiac	Sunbird	LE
1978–1979	Pontiac	Sunbird	Safari
1984–1989	Pontiac	Sunbird	SE
1976	Pontiac	Sunbird	SJ
1981–1987	Pontiac	T1000	Base
1972–1977	Pontiac	Ventura	Base
1973–1975	Pontiac	Ventura	Custom
1974	Pontiac	Ventura	GTO
1975	Pontiac	Ventura	S
1975–1977	Pontiac	Ventura	SJ