1998 GMC Differential & Rear-End Components Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Eaton Detroit Truetrac 30 Spline Differential GM 8.5/8.6 Inch 913A481

Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, GM, 8.5/8.6 in., 2.73 & up, Each

Part Number: ETN-913A481

4.85 out of 5 stars ( 135 )

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Summit Racing™ Positraction 28 Spline Differential Carriers GM 7.5/7.6 Inch SUM-730960

Differential Carrier, Positraction, Nodular Iron, GM 7.5/7.6 in., 28 Spline, 3.23 Up Ratio, Each

Part Number: SUM-730960

5.0 out of 5 stars ( 1 )

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Eaton Detroit Truetrac 28 Spline Differential GM 8.5 Inch 912A556

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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Eaton Detroit Truetrac 28 Spline Differential GM 7.5/7.6 Inch 912A317

Differential, Eaton Detroit Truetrac, 28-Spline, GM 7.5 in., Each

Part Number: ETN-912A317

4.35 out of 5 stars ( 17 )

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Yukon Gear & Axle Dura Grip Positraction Carriers GM 7.5/7.6 Inch YDGGM7.5-3-28-SM

Dura Grip Positraction Carrier, Traction-Loc, GM 7.5/7.6 in., 28 Spline, 3.23 Up Ratio, Each

Part Number: YGA-26018

4.2 out of 5 stars ( 5 )

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Yukon Gear & Axle Ring and Pinion Sets YG GM14T-342 GM 10.5 in. (14-bolt) 3.42 Gears

Ring & Pinion Gear, 3.42 Ratio, GM, 10.5 in. 14-Bolt, Set

Part Number: YGA-24466

5.0 out of 5 stars ( 1 )

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Powertrax Grip Pro Traction Systems GM 8.5 Inch GT201030

Differential, Grip Pro Traction System, 30-Spline, GM 8.5in., 8.6 in., Each

Part Number: PWT-GT201030

5.0 out of 5 stars ( 5 )

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Motive Gear Ring and Pinion Sets GM10-390 GM 8.5/8.6 in. 3.90 Gears

Gear, Ring and Pinion, 3.90:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-390

3.0 out of 5 stars ( 2 )

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Motive Gear Ring and Pinion Sets GM10-456IFS GM 8.25 in. IFS 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.25 in., IFS Front, Set

Part Number: MGR-GM10-456IFS

5.0 out of 5 stars ( 2 )

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Yukon Gear & Axle 28 Spline Differential Carrier Cases GM 7.5/7.625 Inch YC G74038615

Differential Carrier Case, Open, 28-spline, Rear, GM 7.5 in., GM 7.625 in., 3.23 Ratio and Up, Chevy, Each

Part Number: YGA-20102

Not Yet Reviewed

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Motive Gear Ring and Pinion Sets D60-410 Dana 60 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, Dana 60, Set

Part Number: MGR-D60-410

2.0 out of 5 stars ( 2 )

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Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-390 GM 8.5/8.6 in. 3.90 Gears

Ring and Pinion Gears, 3.90:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: YGA-24159

5.0 out of 5 stars ( 3 )

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2012 GM 8.5 in. 3.73 Gears

Ring and Pinion Gears,USA Standard 8.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.625" Carrier Bearing Journal

Part Number: SPZ-10723

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Spicer Drivetrain Products Trac-Lok 35 Spline Differential Dana 60 707163X

Differential Carrier Case Kit Loaded Assy. (Dana 60 Limited Slip) 4.10 & Up 1989-1996 Ford E350

Part Number: SDH-707163X

5.0 out of 5 stars ( 1 )

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Yukon Gear & Axle Dura Grip Positraction Carriers Chrysler 9.25/GM 9.5 Inch YDGGM9.5-33-1

Differential Carrier, Dura Grip Positraction, Clutch-type, 33-spline, Chevy, Dodge, GMC, Hummer, Ram, Each

Part Number: YGA-26025

5.0 out of 5 stars ( 2 )

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Auburn Gear Grip-N-Loc 28 Spline Differential GM 7.5/7.625 Inch 546046

Auburn Gear Grip-N-Loc 28 Spline Differential GM 7.5/7.625 Inch 546046

Differential, Auburn, Grip-N-Loc, Limited Slip, 28-Spline, GM, 7.5 in., 7.625 in., Each

Part Number: AUB-546046

Not Yet Reviewed

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Motive Gear Ring and Pinion Sets GM10-273 GM 8.5/8.6 in. 2.73 Gears

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 )

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Auburn Gear Grip-N-Loc 30 Spline Differential GM 8.5/8.6 Inch 546052

Differential, Auburn, Grip-N-Loc, Limited Slip, 30-Spline, GM, 8.5 in., 8.6 in., Each

Part Number: AUB-546052

Not Yet Reviewed

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Yukon Gear & Axle Ring and Pinion Sets YG GM7.5-373 GM 7.5/7.6 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, 1.438 in. Pinion, 27 Spline, 7.500 in. Ring Gear, GM 7.5/7.6 in., Set

Part Number: YGA-24146

5.0 out of 5 stars ( 1 )

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Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-308 GM 8.5/8.6 in. 3.08 Gears

Ring and Pinion Gears, 3.08:1 Ratio, 30-spline, Standard Rotation, GM 8.5/8.6 in., Set

Part Number: YGA-24492

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Allstar Performance Ring and Pinion Gear Sets ALL70120 GM 8.5/8.6 in. 3.08 Gears

5 out of 5 stars ( 2 )

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2122 GM 10.5 in. (14-bolt) 4.88 Gears

Ring and Pinion Gears,USA Standard 10.5" GM 14 Bolt, 4.88 Ratio Thick Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10835

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Auburn Gear Grip-N-Loc 30 Spline Differential GM 8.5/8.6 Inch 546022

Differential, Auburn, Grip-N-Loc, Limited Slip, 30-Spline, GM, 8.5/8.6 in., 2.73 Ratio and up, Each

Part Number: AUB-546022

5.0 out of 5 stars ( 3 )

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ACDelco Differential Carriers 84596523

DIFFERENTIAL ASM-.

Part Number: ADO-84596523

Not Yet Reviewed

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Powertrax Lock-Right Lockers Chrysler 9.25 Inch 1950-LR

Differential, Lock-Right, Locker, 33-Spline, GM, 9.2 in./9.5 in., Each

Part Number: PWT-1950-LR

4.67 out of 5 stars ( 3 )

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Motive Gear Ring and Pinion Sets D70-354 Dana 70 3.54 Gears

Gear, Ring and Pinion, 3.54:1 Ratio, Dana 70, Set

Part Number: MGR-D70-354

5.0 out of 5 stars ( 1 )

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