1966 CHEVROLET BISCAYNE Differential & Rear-End Components

Differential, Eaton Detroit Truetrac, 28-Spline, GM, 8.5 in., Rear, Each

Part Number: ETN-912A556

4.84 out of 5 stars ( 31 )

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Dura Grip Positraction Carrier, Traction-Loc, GM 8.875 in., 30 Spline, 3.08 to 3.90 Ratio, Each

Part Number: YGA-26011

5.0 out of 5 stars ( 6 )

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Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, GM, 8.875 in., 12-Bolt, Each

Part Number: ETN-913A555

4.73 out of 5 stars ( 15 )

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Gear, Ring and Pinion, 3.55:1 Ratio, GM, 8.2 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4900151

4.71 out of 5 stars ( 14 )

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Differential, Eaton Detroit Truetrac, 33-Spline, GM 8.875 in., Each

Part Number: ETN-914A576

4.0 out of 5 stars ( 2 )

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Gear, Ring and Pinion, 3.90:1 Ratio, GM, 12-Bolt Passenger Car, Set

Part Number: MGR-G888390

4.5 out of 5 stars ( 2 )

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Differential, Lock-Right, Locker, 28-Spline, GM, 8.2 in., Each

Part Number: PWT-1940-LR

4.25 out of 5 stars ( 4 )

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Differential Carrier, Dura Grip Positraction, Clutch-type, 30-spline, Rear, GM 8.875 in. (12-bolt) Passenger Car, Each

Part Number: YGA-26013

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Ring and Pinion Gears, 3.90:1 Ratio, Standard Gear Rotation, GM 8.875 in. Passenger Car, Set

Part Number: YGA-24125

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Gear, Ring and Pinion, 3.73:1 Ratio, 1.438 in. Pinion, 25 Spline, 8.200 in. Ring Gear, GM 8.2 in., Set

Part Number: YGA-24151

5.0 out of 5 stars ( 2 )

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Differential Carrier, Positraction, Nodular Iron, GM 8.875 in., 30 Spline, 3.08 to 3.90 Ratio, Each

Part Number: SUM-730946

5.0 out of 5 stars ( 5 )

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Ring and Pinion Gears, 3.73:1 Ratio, GM, 8.2 in., 10-Bolt, 3 Series, Set

Part Number: RMG-49-0112-1

5.0 out of 5 stars ( 9 )

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Gear, Ring and Pinion, 4.11:1 Ratio, GM, 8.2 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901591

4.43 out of 5 stars ( 7 )

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Differential Carrier, Positraction, Nodular Iron, GM 8.75 in., 33 Spline, 3.08 to 3.90 Ratio, Each

Part Number: SUM-730948

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Ring and Pinion Gears and Installation Kit, 12P 8.875" GM 3.73 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12607

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Gear, Ring and Pinion, 3.36:1 Ratio, GM, 8.2 in., 10-Bolt, 3 Series, Set

Part Number: RMG-49-0013-1

2.67 out of 5 stars ( 3 )

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Ring and Pinion Gears and Installation Kit, 12P 8.875" GM 3.31 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12605

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Ring and Pinion Gears and Installation Kit, 8.2 GM 4.11 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12617

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Ring and Pinion Gears,USA Standard 8.2" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals

Part Number: SPZ-10666

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Yukon positraction internals for 8.2" GM with 28 spline axles

Part Number: YGA-16050

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Ring and Pinion Gears, 4.56:1 Ratio, 8.875 in. Ring Gear, GM 8.875 in. Passenger Car, Set

Part Number: YGA-24451

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Ring and Pinion Gears and Installation Kit, 12P 8.875" GM THIN 3.73 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12608

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Estimated Ship Date: Mar 2, 2026 if ordered today

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