CHEVROLET Chevy small block Gen I USA Standard Gear - Free Shipping on Orders Over $109 at Summit Racing

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 )

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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 )

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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

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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

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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

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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 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 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 )

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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

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

4.5 out of 5 stars ( 4 )

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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 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM12P-373 GM 8.875 in. (12-bolt) passenger car 3.73 Gears

Ring and Pinion Gears, 3.73:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.875 in. Passenger Car, Set

Part Number: SPZ-36167

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

USA Standard Gear Spartan Lockers Dana 60 SL D60-35

Spartan Differential Locker, Dana 60, 35-spline Axle, Ford, Chevy, Dodge, GMC, Plymouth, Each

Part Number: SPZ-17004

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

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

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USA Standard Gear Ring and Pinion Sets ZG GM12P-390 GM 8.875 in. (12-bolt) passenger car 3.90 Gears

USA Standard Ring & Pinion gear set for GM 12 bolt car in a 3.90 ratio

Part Number: SPZ-36169

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM55P-308 GM 55P (8.2 in. Drop out) 3.08 Gears

Ring and Pinion Gears, 3.08:1 Ratio, 17-spline, Standard Ring Gear Rotation, GM 55P, Set

Part Number: SPZ-36189

1.0 out of 5 stars ( 1 )

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USA Standard Gear Ring and Pinion Sets ZG GM12P-342 GM 8.875 in. (12-bolt) passenger car 3.42 Gears

USA Standard Ring & Pinion gear set for GM 12 bolt car in a 3.42 ratio

Part Number: SPZ-36165

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM14T-373 GM 10.5 in. (14-bolt) 3.73 Gears

Ring and Pinion Gears, 3.73:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 10.5 in. (14-bolt), Rear, Chevrolet, GMC, Set

Part Number: SPZ-36182

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USA Standard Gear Ring and Pinion Sets ZG D44-513T Dana 44 5.13 Gears

USA Standard Ring & Pinion "thick" gear set for Dana 44 in a 5.13 ratio

Part Number: SPZ-36051

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM12T-456T GM 8.875 in. (12-bolt) truck 4.56 Gears

USA Standard Ring & Pinion "thick" gear set for GM 12 bolt truck in a 4.56 ratio

Part Number: SPZ-36180

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG D60-411 Dana 60 4.11 Gears

Ring and Pinion Gears, 4.11:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set

Part Number: SPZ-36075

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG D80-430 Dana 80 4.30 Gears

Gear, Ring and Pinion, 4.30:1 Ratio, Dana 80, Set

Part Number: SPZ-36096

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USA Standard Gear Ring and Pinion Sets ZG D44-308 Dana 44 3.08 Gears

Ring and Pinion Gears, Dana 44, 3.08:1 Ratio, 26-spline, Standard Rotation, Dana 44, Chevrolet, Dodge, Ford, GMC, International, Isuzu, Jeep, Set

Part Number: SPZ-36038

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG D44-411 Dana 44 4.11 Gears

Ring and Pinion Gears, 4.11:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36041

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USA Standard Gear Ring and Pinion Sets ZG GM7.5-308 GM 7.5/7.6 in. 3.08 Gears

Ring and Pinion Gears, GM 7.5/7.6 in., 3.08:1 Ratio, 27-spline, Standard Rotation, GM 7.5/7.6 in., Buick, Chevy, GMC, Hummer, Isuzu, Pontiac, Set

Part Number: SPZ-36193

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM8.2-336 GM 8.2 in. 3.36 Gears

Gear, Ring and Pinion, 3.36:1 Ratio, GM 8.2 in., Set

Part Number: SPZ-36203

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

USA Standard Gear Spartan Lockers Dana 44 SL D44-30

Spartan Differential Locker, Dana 44, 30-spline Axle, Jeep, Ford, Dodge, International, Isuzu, Each

Part Number: SPZ-17001

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM12T-373T GM 8.875 in. (12-bolt) truck 3.73 Gears

USA Standard Ring & Pinion gear set for GM 12 bolt truck in a 3.73 ratio

Part Number: SPZ-36176

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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CHEVROLET Chevy small block Gen I USA Standard Gear Parts and Accessories