PONTIAC 6.4L/389 Differential & Rear-End Components

Axle Shaft, Rear, 1541H Alloy, 28 Spline, 29.875 in. Length, GM 8.2 in. BOP, Pontiac, Each

Part Number: YGA-21289

4.24 out of 5 stars ( 25 )

Estimated Ship Date: Monday 1/26/2026

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Axle Shaft, 28-spline, 29.875 in. Length, Rear, GM 8.2 in., BOP Axle, Pontiac, Each

Part Number: SPZ-35060

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 1/26/2026

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Gear, Ring and Pinion, EXCel, 3.42:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set

Part Number: RMG-12BC342

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 12, 2026 if ordered today

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Ring and Pinion Install Kit

Part Number: RMG-83-1088-1

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Gear, Ring and Pinion, 3.73:1 Ratio, GM 8.25 in., Set

Part Number: RNB-697-803

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Gear, Ring and Pinion, 3.55:1 Ratio, GM 8.25 in., Set

Part Number: RNB-697-802

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Estimated Ship Date: Feb 13, 2026 if ordered today

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