1989 GMC K1500 Differential & Rear-End Components

Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 30

Part Number: YGA-10397

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Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 4.11 Ratio Rear Ring & Pinion GearInstall Kit 30

Part Number: YGA-10398

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Rear Axle, GM POSI K1500 4WD AXLE GU

Part Number: VRE-RAXP1513A

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Estimated Ship Date: Feb 23, 2026 if ordered today

• Core Charge $400.00
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Differential, Posi Performance, Electric Locker, 30-Spline, GM, 8.5 in., Each

Part Number: ETN-19659-010

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Rear Axle, GM K1500 88-99 4WD GU6

Part Number: VRE-RAX1513A

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Estimated Ship Date: Mar 2, 2026 if ordered today

• Core Charge $400.00
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Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 3.42 Ratio Install Kit 30 SplineBearings & Seals

Part Number: YGA-10396

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 4.56 Ratio Rear Ring & Pinion GearInstall Kit 30

Part Number: YGA-10399

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Estimated Ship Date: Feb 20, 2026 if ordered today

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