CHEVROLET USA Standard Gear Differential & Rear-End Components Transmission & Drivetrain - Free Shipping on Orders Over $109 at Summit Racing

USA Standard Gear Master Overhaul Kits ZK GM8.6

Ring and Pinion Installation Kit, GM 8.6 in., Rear, Kit

Part Number: SPZ-37059

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Ring and Pinion Sets ZG GM8.5-373 GM 8.5/8.6 in. 3.73 Gears

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

Part Number: SPZ-36214

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Master Overhaul Kits ZK GM12T

Ring and Pinion Gear Installation Kits, Master Overhaul Kits, 30-spline, GM 8.875 in. (12-bolt) Truck, Rear, Chevrolet, GMC, Kit

Part Number: SPZ-37043

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Ring and Pinion Sets ZG D60-354 Dana 60 3.54 Gears

Ring and Pinion Gears, 3.54:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set

Part Number: SPZ-36073

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Master Overhaul Kits ZK D60-R

Ring and Pinion Gear Installation Kits, Master Overhaul Kits, 29-spline, Dana 60, Rear, Chevrolet, Dodge, Ford, GMC, Jeep, Plymouth, Kit

Part Number: SPZ-37021

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Ring and Pinion Sets ZG D44HD-373 Dana 44-HD 3.73 Gears

USA Standard Ring & Pinion gear set for Dana 44-HD in a 3.73 ratio

Part Number: SPZ-36057

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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Estimated Ship Date: Nov 24, 2025 if ordered today

USA Standard Gear Spider Gear Sets ZIKGM12-S-30

Differential Carrier Rebuild Kits and Spider Gears, Spider Gear Sets, GM 8.875 in. (12-bolt), Car/Truck, 30-spline, Buick, Chevy, GMC, Pontiac, Kit

Part Number: SPZ-39021

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Ring and Pinion Sets ZG GM8.5-411 GM 8.5/8.6 in. 4.11 Gears

Ring and Pinion Gear, 4.11:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36216

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Master Overhaul Kits ZK GM8.2

Ring and Pinion Installation Kit, GM 8.2 in., Rear, Kit

Part Number: SPZ-37051

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2112 AAM/Chrysler/GM 11.5 in. 3.73 Gears

Ring and Pinion Gears,USA Standard 11.5" AAM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 4.375" OD Inner Pinion Bearing

Part Number: SPZ-10825

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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Estimated Ship Date: Nov 24, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2226 GM 8.875 in. (12-bolt) truck 3.42 Gears

Ring and Pinion Gears,USA Standard 8.875" GM 12 Bolt Truck, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10681

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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Estimated Ship Date: Nov 24, 2025 if ordered today

USA Standard Gear Master Overhaul Kits ZK GM8.5

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

Part Number: SPZ-37055

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Master Overhaul Kits ZK GM7.5-B

USA Standard Master Overhaul kit GM 7.5 in./7.625 in, Rear, Kit

Part Number: SPZ-37049

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

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

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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Estimated Ship Date: Nov 24, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM8.5-456 GM 8.5/8.6 in. 4.56 Gears

Ring and Pinion Gear, 4.56:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36218

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2214

Ring and Pinion Gears,USA Standard 8.2" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 28 Spline and 2.25" OD Axle Bearings & Seals

Part Number: SPZ-10669

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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Estimated Ship Date: Nov 24, 2025 if ordered today

USA Standard Gear Master Overhaul Kits ZK GM8.6-B

USA Standard Master Overhaul kit for the '09 and newer GM 8.6" differential

Part Number: SPZ-37060

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2022 GM 8.6 in. 3.73 Gears

Ring and Pinion Gears,USA Standard 8.6" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10733

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Ring and Pinion Sets ZG D44-456T Dana 44 4.56 Gears

Ring and Pinion Gears, 4.56:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36045

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Spartan Lockers GM 8.5 Inch SL GM8.5-28

Spartan Differential Locker, GM 8.5 in., 28-spline Axle, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each

Part Number: SPZ-17040

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Nov 25, 2025 if ordered today

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Estimated Ship Date: Nov 25, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Powertrax Lock-Right Lockers GM 8.5 Inch 1920-LR

4.75 out of 5 stars ( 14 )

Estimated Ship Date: Monday 11/10/2025

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USA Standard Gear Ring and Pinion Sets ZG D44-373 Dana 44 3.73 Gears

Ring and Pinion Gears, 3.73:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36040

Not Yet Reviewed

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Need It Sooner? We recommend these similar substitute parts:

Motive Gear Ring and Pinion Sets D44-373 Dana 44 3.73 Gears

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

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USA Standard Gear Spartan Lockers GM 8.875 Inch (12-bolt), truck SL GM12-30

Differential Carrier, Spartan Locker, 30-spline, Steel, Rear, GM 8.875 in., Each

Part Number: SPZ-17032

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Nov 25, 2025 if ordered today

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Estimated Ship Date: Nov 25, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2238 GM 7.5/7.625 in. 3.73 Gears

Ring and Pinion Gears,USA Standard 7.5"/7.625" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals

Part Number: SPZ-10693

Not Yet Reviewed

Estimated Ship Date: Nov 25, 2025 if ordered today

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Estimated Ship Date: Nov 25, 2025 if ordered today

USA Standard Gear Axle Shafts ZA G3969285

Axle Shaft, 30-Spline, 30.125 in. Length, Rear, Chevy, GMC, Each

Part Number: SPZ-35058

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

USA Standard Gear Master Overhaul Kits ZK GM8.5-HD

USA Standard Master Overhaul kit GM 8.5 in., Rear, Kit

Part Number: SPZ-37057

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025