Eaton Posi Diff 28 Spline 1.20in Axle Shaft Dia 3.23 & Up Ratio Rear 7.5in/7.625in/8.5in/8.6in/9.5in 19599-010
EAT Posi Diffs
The Eaton Posi limited-slip differential prevents wheel slip before it can get started. To do that, carbon disc clutch packs, preloaded by a central spring assembly, are located behind each differential side gear. When torque input increases the clamping load on the clutch packs increases. That causes the chatter-free clutch packs to grab and transfer power to the other wheel. Muscle cars, hot rods and mild off-road vehicles should look to Eatonss limited-slip differential for their traction answers. And the fact is, Eatons Posi units are virtually bullet proof.
Eaton Posi" Differential; 28 Spline; 1.20 in. Axle Shaft Diameter; 3.23 And Up Ring Gear Pinion Ratio; Rear 7.5 in./7.625 in./8.5 in./8.6 in.; Rear 9.5 in.;
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988 - 1996 | Buick | Century | Base |
| 1988 - 1989 | Buick | Century | Estate Wagon |
| 1988 - 2002 | Buick | Century | Limited, Custom |
| 1991 - 1996 | Buick | Century | Special |
| 1991 - 1996 | Buick | Commercial Chassis | Base |
| 1988 - 1989 | Buick | Electra | Estate Wagon |
| 1989 - 1990 | Buick | Electra | Park Avenue Ultra |
| 1988 - 1990 | Buick | Electra | T-Type, Limited, Park Avenue |
| 1988 - 1991 | Buick | LeSabre | Base |
| 1988 - 1990 | Buick | LeSabre | Estate Wagon |
| 1988 - 2002 | Buick | LeSabre | Limited, Custom |
| 1991 - 2002 | Buick | Park Avenue | Ultra, Base |
| 1988 - 1991 | Buick | Reatta | Base |
| 1998 | Buick | Regal | 25th Anniversary Edition |
| 1994 | Buick | Regal | Base |
| 1988 - 1996 | Buick | Regal | Custom, Limited |
| 1989 - 1996 | Buick | Regal | Gran Sport |
| 2000 | Buick | Regal | GSE, LSE |
| 1997 - 2002 | Buick | Regal | LS, GS |
| 1996 | Buick | Regal | Olympic Gold Edition |
| 1995 - 1999 | Buick | Riviera | Base |
| 1988 - 1993 | Buick | Riviera | Luxury |
| 1988 - 1989 | Buick | Riviera | T-Type |
| 1992 - 1995 | Buick | Roadmaster | Base, Limited |
| 1996 | Buick | Roadmaster | Collector's Edition, Limited Collector's Edition, Estate Wagon Collector's Edition |
| 1991 - 1995 | Buick | Roadmaster | Estate Wagon |
| 1988 - 1989 | Buick | Skyhawk | Custom, SE |
| 1988 - 1998 | Buick | Skylark | Custom |
| 1990 - 1997 | Buick | Skylark | Gran Sport |
| 1988 - 1997 | Buick | Skylark | Limited |
| 1990 - 1991 | Buick | Skylark | Luxury Edition, Base |
| 1996 | Buick | Skylark | Olympic Gold Edition |
| 1988 - 2005 | Chevrolet | Astro | Base, LT |
| 1988 - 1995 | Chevrolet | Astro | CL, CS |
| 1996 - 2005 | Chevrolet | Astro | LS |
| 1988 - 1996 | Chevrolet | Beretta | Base |
| 1989 - 1993 | Chevrolet | Beretta | GT |
| 1990 - 1993 | Chevrolet | Beretta | GTZ |
| 1990 | Chevrolet | Beretta | Indianapolis 500 Pace Car |
| 1994 - 1996 | Chevrolet | Beretta | Z26 |
| 1988 - 2002 | Chevrolet | Camaro | Base |
| 1993 | Chevrolet | Camaro | Indianapolis 500 Pace Car |
| 1988 - 1990 | Chevrolet | Camaro | Iroc-Z |
| 1996 - 1998 | Chevrolet | Camaro | Lujo |
| 1989 - 1997 | Chevrolet | Camaro | RS |
| 1991 - 2002 | Chevrolet | Camaro | Z28 |
| 1992 | Chevrolet | Camaro | Z28 Heritage Edition, RS Heritage Edition |
| 1998 - 2002 | Chevrolet | Camaro | Z28 SS |
| 1988 - 1992 | Chevrolet | Caprice | Base |
| 1988 - 1996 | Chevrolet | Caprice | Classic |
| 1993 - 1994 | Chevrolet | Caprice | Classic LS |
| 1988 - 1990 | Chevrolet | Caprice | Classic LS Brougham, Classic Brougham |
| 1991 - 1993 | Chevrolet | Caprice | Classic LTZ |
| 1988 - 2002 | Chevrolet | Cavalier | Base, Z24 |
| 1995 - 2002 | Chevrolet | Cavalier | LS |
| 2002 | Chevrolet | Cavalier | LS Sport |
| 1988 - 1999 | Chevrolet | Cavalier | RS |
| 1988 - 1994 | Chevrolet | Cavalier | VL |
| 1988 - 1990 | Chevrolet | Celebrity | Base, Eurosport |
| 1989 | Chevrolet | Celebrity | CL |
| 1988 - 1996 | Chevrolet | Corsica | Base |
| 1988 - 1993 | Chevrolet | Corsica | LT |
| 1989 - 1992 | Chevrolet | Corsica | LTZ |
| 1988 | Chevrolet | Corvette | 35th Anniversary Edition |
| 1993 | Chevrolet | Corvette | 40th Anniversary Edition |
| 1988 - 2002 | Chevrolet | Corvette | Base |
| 1996 | Chevrolet | Corvette | Grand Sport, Collector's Edition |
| 1995 - 1998 | Chevrolet | Corvette | Indianapolis 500 Pace Car |
| 2001 - 2002 | Chevrolet | Corvette | Z06 |
| 1990 - 1995 | Chevrolet | Corvette | ZR-1 |
| 2000 - 2002 | Chevrolet | Impala | Base, LS |
| 1994 - 1996 | Chevrolet | Impala | SS |
| 1990 - 2001 | Chevrolet | Lumina | Base |
| 1990 - 1994 | Chevrolet | Lumina | Euro |
| 1995 - 1999 | Chevrolet | Lumina | LS |
| 1997 - 1999 | Chevrolet | Lumina | LTZ |
| 1991 - 1994 | Chevrolet | Lumina | Z34 |
| 1997 - 2002 | Chevrolet | Malibu | Base, LS |
| 1997 | Chevrolet | Malibu | LX |
| 1998 - 2000 | Chevrolet | Metro | Base |
| 1998 - 2001 | Chevrolet | Metro | LSi |
| 1988 | Chevrolet | Monte Carlo | Base |
| 1999 | Chevrolet | Monte Carlo | Indianapolis 500 Pace Car |
| 1988 - 2002 | Chevrolet | Monte Carlo | LS, SS |
| 2002 | Chevrolet | Monte Carlo | SS 35th Anniversary Edition, SS Dale Earnhardt Signature Edition |
| 1995 - 1999 | Chevrolet | Monte Carlo | Z34 |
| 1988 | Chevrolet | Nova | Base, CL, Twin Cam |
| 1998 - 2002 | Chevrolet | Prizm | Base, LSi |
| 1991 | Chevrolet | S10 | Baja |
| 1988 - 2003 | Chevrolet | S10 | Base |
| 1988 - 1990 | Chevrolet | S10 | Durango |
| 1992 - 1993 | Chevrolet | S10 | EL |
| 1994 - 2004 | Chevrolet | S10 | LS |
| 1991 - 1993 | Chevrolet | S10 | Maxi |
| 1988 - 1989 | Chevrolet | S10 | Sport |
| 1994 - 1998 | Chevrolet | S10 | SS |
| 1988 - 1992 | Chevrolet | S10 | Tahoe |
| 1999 - 2003 | Chevrolet | S10 | Xtreme |
| 1994 - 2003 | Chevrolet | S10 | ZR2 |
| 2002 - 2004 | Chevrolet | S10 | ZR5 |
| 1988 - 1994 | Chevrolet | S10 Blazer | Base, Tahoe |
| 1988 - 1989 | Chevrolet | S10 Blazer | High Country |
| 1994 | Chevrolet | S10 Blazer | LT |
| 1988 - 1992 | Chevrolet | S10 Blazer | Sport |
| 1991 - 1994 | Chevrolet | S10 Blazer | Tahoe LT |
| 2002 | Chevrolet | Silverado 1500 | Custom, WT |
| 1999 - 2002 | Chevrolet | Silverado 1500 | LT, LS, Base |
| 2001 - 2002 | Chevrolet | Silverado 1500 HD | LT, LS |
| 1988 | Chevrolet | Spectrum | CL, Express, Turbo, CL Plus, Base |
| 1988 | Chevrolet | Sprint | Metro, Base, ER, Turbo |
| 1988 | GMC | S15 | Gypsy |
| 1988 - 1990 | GMC | S15 | Sierra Classic, High Sierra, Base |
| 1988 - 1991 | GMC | S15 Jimmy | Base |
| 1988 - 1990 | GMC | S15 Jimmy | Sierra Classic, Gypsy |
| 1991 | GMC | S15 Jimmy | SLT, SLE, SLS |
| 1988 - 1989 | GMC | S15 Jimmy | Timberline |
| 1988 - 1997 | GMC | Safari | Base |
| 1993 | GMC | Safari | GT |
| 1995 - 1999 | GMC | Safari | SL |
| 1988 - 1999 | GMC | Safari | SLE, SLT |
| 1988 - 1998 | GMC | Safari | SLX |
| 2001 | GMC | Sierra 1500 | C3 |
| 2002 | GMC | Sierra 1500 | Denali, HT, WT, Base |
| 1999 - 2002 | GMC | Sierra 1500 | SLE, SL, SLT |
| 2001 - 2002 | GMC | Sierra 1500 HD | SLT, SLE |
| 1991 - 1993 | GMC | Sonoma | Base |
| 1992 | GMC | Sonoma | GT |
| 1994 - 2004 | GMC | Sonoma | SL |
| 1991 - 2001 | GMC | Sonoma | SLE |
| 1993 - 2004 | GMC | Sonoma | SLS |
| 1991 | GMC | Syclone | Base |
| 1988 - 1992 | Isuzu | Pickup | 1 Ton, LS |
| 1988 - 1995 | Isuzu | Pickup | S |
| 1989 - 1990 | Isuzu | Pickup | XS |
| 1991 - 2002 | Isuzu | Rodeo | LS, S |
| 1999 - 2002 | Isuzu | Rodeo | LSE |
| 2001 - 2002 | Isuzu | Rodeo | S V6 |
| 1991 - 1992 | Isuzu | Rodeo | XS |
| 1999 | Oldsmobile | 88 | 50th Anniversary Edition |
| 1995 | Oldsmobile | 88 | Royale LSS |
| 1992 - 1999 | Oldsmobile | 88 | Royale, Royale LS |
| 1988 - 1994 | Oldsmobile | 98 | Regency |
| 1991 - 1996 | Oldsmobile | 98 | Regency Elite |
| 1988 - 1990 | Oldsmobile | 98 | Regency Touring, Regency Brougham |
| 1991 - 1993 | Oldsmobile | 98 | Touring |
| 1992 - 1998 | Oldsmobile | Achieva | S |
| 1992 - 1993 | Oldsmobile | Achieva | SCX |
| 1992 - 1997 | Oldsmobile | Achieva | SL, SC |
| 1999 - 2002 | Oldsmobile | Alero | GX, GL, GLS |
| 1995 - 2002 | Oldsmobile | Aurora | Base |
| 1991 - 2004 | Oldsmobile | Bravada | Base |
| 1988 - 1992 | Oldsmobile | Custom Cruiser | Base |
| 1997 - 1998 | Oldsmobile | Cutlass | Base |
| 1999 | Oldsmobile | Cutlass | GL |
| 1997 - 1999 | Oldsmobile | Cutlass | GLS |
| 1988 - 1991 | Oldsmobile | Cutlass Calais | Base, GT, International, SL |
| 1989 - 1991 | Oldsmobile | Cutlass Calais | S |
| 1988 - 1996 | Oldsmobile | Cutlass Ciera | Base |
| 1989 - 1990 | Oldsmobile | Cutlass Ciera | GT |
| 1988 - 1990 | Oldsmobile | Cutlass Ciera | International |
| 1988 | Oldsmobile | Cutlass Ciera | LS, Brougham |
| 1988 - 1994 | Oldsmobile | Cutlass Ciera | SL, S |
| 1989 - 1994 | Oldsmobile | Cutlass Cruiser | Base |
| 1988 | Oldsmobile | Cutlass Cruiser | Brougham LS, LS |
| 1991 - 1994 | Oldsmobile | Cutlass Cruiser | S |
| 1988 - 1992 | Oldsmobile | Cutlass Cruiser | SL |
| 1994 | Oldsmobile | Cutlass Cruiser | Special Edition |
| 1988 | Oldsmobile | Cutlass Supreme | Indy 500 Pace Car, Classic, Classic Brougham |
| 1988 - 1993 | Oldsmobile | Cutlass Supreme | International |
| 1992 - 1994 | Oldsmobile | Cutlass Supreme | S |
| 1988 - 1997 | Oldsmobile | Cutlass Supreme | SL, Base |
| 1988 - 1991 | Oldsmobile | Delta 88 | Royale Brougham, Royale |
| 1988 | Oldsmobile | Firenza | Cruiser, Base |
| 1998 | Oldsmobile | Intrigue | Base |
| 1998 - 2002 | Oldsmobile | Intrigue | GLS, GL |
| 1999 - 2002 | Oldsmobile | Intrigue | GX |
| 1996 - 1999 | Oldsmobile | LSS | Base |
| 1997 - 1998 | Oldsmobile | Regency | Base |
| 1988 - 1992 | Oldsmobile | Toronado | Base, Trofeo |
| 1988 - 1989 | Pontiac | 6000 | Base, STE |
| 1988 - 1991 | Pontiac | 6000 | LE |
| 1988 | Pontiac | 6000 | SE |
| 1989 - 1991 | Pontiac | 6000 | Special Edition |
| 1989 | Pontiac | 6000 | Touring |
| 1988 - 1991 | Pontiac | Bonneville | LE |
| 1988 - 2002 | Pontiac | Bonneville | SE |
| 2000 - 2002 | Pontiac | Bonneville | SLE |
| 1988 - 1999 | Pontiac | Bonneville | SSE |
| 1992 - 2002 | Pontiac | Bonneville | SSEi |
| 1988 | Pontiac | Fiero | Formula, Sport, GT, Value Leader |
| 1989 - 2002 | Pontiac | Firebird | Formula |
| 1994 | Pontiac | Firebird | Trans Am GT |
| 1989 - 1992 | Pontiac | Firebird | Trans Am GTA |
| 1989 | Pontiac | Firebird | Trans Am GTA SE |
| 1988 - 2002 | Pontiac | Firebird | Trans Am, Base |
| 1988 | Pontiac | Grand Am | Base |
| 1992 - 2002 | Pontiac | Grand Am | GT |
| 2000 - 2002 | Pontiac | Grand Am | GT1, SE1 |
| 1988 - 1991 | Pontiac | Grand Am | LE |
| 1988 - 2002 | Pontiac | Grand Am | SE |
| 2000 | Pontiac | Grand Am | SE2 |
| 1991 | Pontiac | Grand Am | Value Leader |
| 1988 - 1996 | Pontiac | Grand Prix | Base |
| 1991 - 2002 | Pontiac | Grand Prix | GT |
| 1992 - 2002 | Pontiac | Grand Prix | GTP |
| 1988 - 1993 | Pontiac | Grand Prix | LE |
| 1990 | Pontiac | Grand Prix | Mclaren |
| 1988 - 2002 | Pontiac | Grand Prix | SE |
| 1990 - 1993 | Pontiac | Grand Prix | STE |
| 1988 | Pontiac | LeMans | Aerocoupe YL, Base, Aerocoupe |
| 1989 - 1990 | Pontiac | LeMans | GSE |
| 1989 - 1992 | Pontiac | LeMans | LE |
| 1988 - 1993 | Pontiac | LeMans | Value Leader, SE |
| 1988 - 1989 | Pontiac | Safari | Base |
| 1988 | Pontiac | Sunbird | Base |
| 1988 - 1994 | Pontiac | Sunbird | GT, SE |
| 1989 - 1994 | Pontiac | Sunbird | LE |
| 1992 - 1993 | Pontiac | Sunbird | LE Value Leader |
| 1991 | Pontiac | Sunbird | Value Leader |
| 1997 - 2002 | Pontiac | Sunfire | Base |
| 2000 | Pontiac | Sunfire | GT Milenio |
| 1995 - 2002 | Pontiac | Sunfire | GT, SE |