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Oldsmobile 98 Differential Replacement

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  1. ✓ In Stock 1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 912A317

    28 Spline; 1.20 in. Axle Shaft Diameter; 3.23 And Up Ring Gear Pinion Ratio; 7.5 in./7.625 in.

    $642.99 View part →
  2. ✓ In Stock 1975-1989 Oldsmobile 98 Differential - Rear (Eaton)

    1975-1989 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 911A319

    26 Spline; 1.16 in. Axle Shaft Diameter; 3.23 And Up Ring Gear Pinion Ratio; GM 7.5 in.

    $653.99 View part →
  3. ✓ In Stock 1975-1989 Oldsmobile 98 Differential - Rear (Eaton)

    1975-1989 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 911A415

    26 Spline; 1.16 in. Axle Shaft Diameter; 3.08 And Down Ring Gear Pinion Ratio; 7.5 in.

    $659.99 View part →
  4. ✓ In Stock 1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 913A481

    30 Spline; 1.32 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; Rear 8.5 in./8.6 in. GM 8.5/8.6 in. Eaton Differentials Require Special Bearings~Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

    $659.99 View part →
  5. ✓ In Stock 1975-1989 Oldsmobile 98 Differential - Rear (Eaton)

    1975-1989 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 19663-010

    26 Spline; 1.16 in. Axle Shaft Diameter; 3.23 And Up Ring Gear Pinion Ratio; 7.5 in.

    $696.99 View part →
  6. ✓ In Stock 1970-1989 Oldsmobile 98 Differential - Rear (Eaton)

    1970-1989 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 912A556

    28 Spline; 1.20 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; 8.5 in. GM 8.5/8.6 in. Eaton Differentials Require Special Bearings~Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

    $696.99 View part →
  7. ✓ In Stock 1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 913A555

    30 Spline; 1.29 in. Axle Shaft Diameter; 3.08 - 3.90 Ring Gear Pinion Ratio; Rear 8.875 in. Designed To Fit Axles Cut w/45deg. Pressure Angles

    $716.99 View part →
  8. ✓ In Stock 1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 914A576

    33 Spline; 1.41 in. Axle Shaft Diameter; 3.08 - 3.90 Ring Gear Pinion Ratio; Rear 8.875 in.

    $749.99 View part →
  9. ✓ In Stock 1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 19559-010

    30 Spline; 1.32 in. Axle Shaft Diameter; 2.73 And Up Rng Gear Pin. Rat;Manual Locking Hubs Are Recomnd For Some Appl.; 8.5 in./8.6 in. GM 8.5/8.6 in. Eaton Differentials Require Special Bearings~Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

    $750.99 View part →
  10. ✓ In Stock 1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 19603-010

    28 Spline; 1.23 in. Axle Shaft Diameter; 3.08 And Up Ring Gear Pinion Ratio; 8.2 in.

    $750.99 View part →
  11. ✓ In Stock 1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 19554-010

    30 Spline; 1.29 in. Axle Shaft Diameter; 3.08 - 3.90 Ring Gear Pinion Ratio; Rear 8.875 in.

    $750.99 View part →
  12. ✓ In Stock 1970-1989 Oldsmobile 98 Differential - Rear (Eaton)

    1970-1989 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 19557-010

    28 Spline; 1.20 in. Axle Shaft Diameter; 2.73 And Up Rng Gear Pin Rat; Manual Locking Hubs Are Recomded For Some Application; 8.5 in. Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

    $750.99 View part →
  13. ✓ In Stock 1955-1964 Oldsmobile 98 Differential - Rear (Eaton)

    1955-1964 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 19686-010

    17 Spline; 1.197 in. Axle Shaft Diameter; 3.90 And Down Ring Gear Pinion Ratio; Rear 8.2 in. Factory Open Requires Housing Modification For Installation

    $775.99 View part →
  14. ✓ In Stock 1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 19599-010

    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.

    $777.99 View part →
  15. ✓ In Stock 1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 19555-010

    30 Spline; 1.29 in. Axle Shaft Diameter; 4.10 And Up Ring Gear Pinion Ratio; Rear 8.875 in.

    $801.99 View part →
  16. ✓ In Stock 1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    1964-1972 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 914A575

    33 Spline; 1.41 in. Axle Shaft Diameter; 4.10 And Up Ring Gear Pinion Ratio; Rear 8.875 in. Designed To Fit Axles Cut w/45deg. Pressure Angles

    $856.99 View part →
  17. ✓ In Stock 1964-1971 Oldsmobile 98 Differential - Rear (Eaton)

    1964-1971 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 19674-010

    28 Spline; 1.25 in. Axle Shaft Diameter; 3.36 And Up Ring Gear Pinion Ratio; Rear 8.2 in.

    $857.99 View part →
  18. ✓ In Stock 1975-1989 Oldsmobile 98 Differential - Rear (Eaton)

    1975-1989 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 162C58A

    26 Spline; 1.16 in. Axle Shaft Diameter; 3.23 And Up Ring Gear Pinion Ratio; 7.5 in.

    $1,071.99 View part →
  19. ✓ In Stock 1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 187C148A

    30 Spline; 1.32 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; Rear 8.5 in.; Rear 8.6 in. Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

    $1,099.99 View part →
  20. ✓ In Stock 1970-1989 Oldsmobile 98 Differential - Rear (Eaton)

    1970-1989 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 187C149A

    28 Spline; 1.20 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; 8.5 in.

    $1,146.99 View part →
  21. ✓ In Stock 1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    1988-1996 Oldsmobile 98 Differential - Rear (Eaton)

    Partslink #: 19659-010

    30 Spline; 1.32 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; 8.5 in./8.6 in. GM 8.5/8.6 in. Eaton Differentials Require Special Bearings~Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

    $1,574.99 View part →
  22. ✓ In Stock 1971-1984 Oldsmobile 98 Differential - Front or Rear (Auburn Gear)

    1971-1984 Oldsmobile 98 Differential - Front or Rear (Auburn Gear)

    Partslink #: 545003

    Selectable Full Locker w/Limited Slip; For Use w/2.73-Up Ratio; 28 Spline 8.5 in. (10 Bolt)

    $1,705.85 View part →
  23. ✓ In Stock 1959-1964 Oldsmobile 98 Differential (Currie)

    1959-1964 Oldsmobile 98 Differential (Currie)

    Partslink #: CE-GMB5964X

    Currie Performance 31 Spline Axles

    $2,165.41 View part →
  24. ✓ In Stock 1965-1970 Oldsmobile 98 Differential (Currie)

    1965-1970 Oldsmobile 98 Differential (Currie)

    Partslink #: CE-GMB6570X

    Currie Performance 31 Spline Axles; Heavy Duty 4-Link Brackets Installed In OEM Locations

    $2,165.41 View part →

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Differential Compatibility for Oldsmobile 98

Browse our selection of quality differential parts designed specifically for your Oldsmobile 98. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.

Available Trims

Base · Custom · Holiday · Luxury · Regency · Regency Brougham · Regency Elite · Regency Grande · Regency Touring · Touring

Body Types

Convertible · Coupe · Hardtop · Sedan

Engine Options

V6 3.0L · V6 3.8L · V6 4.1L · V6 4.3L · V8 5.0L · V8 5.3L · V8 5.7L · V8 6.1L · V8 6.5L · V8 6.6L · V8 7.0L · V8 7.5L

Transmissions

Automatic · Manual · U/K

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