OLDSMOBILE Differential & Rear-End Components

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885373

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/17/2025

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Ring and Pinion Installation Kit, Super Kit, GM, 7.5 in., Kit

Part Number: MGR-R75GRSK

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

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Ring and Pinion Installation Kit, GM, 7.5 in./7.625 in., 10-Bolt, Kit

Part Number: RMG-831044M

4.4 out of 5 stars ( 15 )

Estimated Ship Date: Monday 11/17/2025

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Axle Shaft, 28-Spline, 29.00 in. Length, Chevy, GMC, Oldsmobile, 7.625 in., Rear, Each

Part Number: RMG-92-25168

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/17/2025

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Performance Mini Spool (GM 8.5 - 30 Spline)

Part Number: SDH-10015388

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

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Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 7.5/7.625 in., 10-Bolt, Set

Part Number: RMG-GM75456

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/17/2025

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Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set

Part Number: RMG-12BC373T

5.0 out of 5 stars ( 1 )

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Differential Carrier Clutches, OE, Composite Clutch Pack, Rear, Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac, Kit

Part Number: ADO-12524505

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

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• $20.00 Summit Bucks

Ring and Pinion Installation Kit, Super Kit, GM, 7.5 in., Kit

Part Number: MGR-R75GRSKT

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/17/2025

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Ring and Pinion Installation Kit, GM, 7.5 in./7.625 in., 10-Bolt, 1977-1981, 27-Spline Pinion, Kit

Part Number: RMG-8310161

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 3, 2025 if ordered today

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Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit

Part Number: MGR-R12CRSKT

4.5 out of 5 stars ( 14 )

Estimated Ship Date: Dec 5, 2025 if ordered today

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Ring and Pinion Installation Kit, Master Overhaul, GM 8.5 in., Rear, Kit

Part Number: YGA-14090

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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Ring and Pinion Gear Installation Kit, Master Overhaul, 27 Spline, GM 7.5/7.6 in., Kit

Part Number: YGA-14077

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/17/2025

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Ring and Pinion Installation Kit, Basic, GM 7.5 in., Rear, Kit

Part Number: MGR-R7-5GR

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/17/2025

Axle Shaft, OEM Replacement, C-clip, 1541H Alloy Steel, 28-spline Inner, 30.125 in. Length, Each

Part Number: MGR-MG1015

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/17/2025

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Spider Gear Kit, Open Differential, G7.625 in., 28 Spline, Kit

Part Number: YGA-16049

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/17/2025

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Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, 28-spline, 10-bolt, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: SPZ-39026

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/17/2025

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Differential Carrier, Open, GM 7.625 in., 3.23 and higher ratio, Each

Part Number: MGR-GM7-6E

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-373

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

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Gear, Ring and Pinion, EXCel, 4.10:1 Ratio, GM, 7.5/7.625 in., 10-Bolt, Set

Part Number: RMG-GM75410OE

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/17/2025

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Gear, Ring and Pinion, 2.73:1 Ratio, GM 7.5/7.625 in., Set

Part Number: RNB-697-713

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

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Axle Shaft, 28-Spline, 28.813 in. Length, Chevy, GMC, Isuzu, Oldsmobile, 7.625 in., Rear, Each

Part Number: RMG-92-25170

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/17/2025

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Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-GM10-273

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/17/2025

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Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, Rear, Open, 28-spline, 10-bolt, GM 8.5 in., Kit

Part Number: SVL-10020477

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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• Special Order

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 7.25 in. IFS, Set

Part Number: MGR-GM7-2-410IFS

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

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