USA Standard Gear at Summit Racing

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 )

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USA Standard Gear Manual Transmission Bearing Kits ZMMK308AWS

Manual Transmission Bearing and Seal Overhaul Kit, Manual Transmission Bearing and Seal Overhaul Kit

Part Number: SPZ-ZMMK308AWS

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG D44R-411R Dana 44 4.11 Gears

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

Part Number: SPZ-36065

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

USA Standard Gear Master Overhaul Kits ZK D60-F

USA Standard Master Overhaul kit Dana 60, Front, Kit

Part Number: SPZ-37020

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USA Standard Gear Master Overhaul Kits ZK GM12P

USA Standard Master Overhaul kit for the GM 12P differential

Part Number: SPZ-37042

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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 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

USA Standard Gear Manual Transmission Bearing Kits ZMBK247

Transmission Bearing and Seal, M5R1 Kit Aerostar/Bronco II/Explorer/Sport Trac/Ranger Plus Mazda B2300/B2500/B3000/B4000/Navajo 5-Speed Manual Trans

Part Number: SPZ-74679

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG C8.25-488 Chrysler 8.25 in. 4.88 Gears

Ring and Pinion Gears, 4.88:1 Ratio, 10-bolt, 27-spline, Standard Gear Rotation, Chrysler, 8.25 in., Set

Part Number: SPZ-36268

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USA Standard Gear Ring and Pinion Sets ZG C10.5-373 Chrysler 10.5 in. 3.73 Gears

Differential Ring and Pinion, USA Standard Ring & Pinion set for Chrysler 10.5" in a 3.73 ratio

Part Number: SPZ-36353

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

USA Standard Gear Transfer Case Bearing Kits ZTBK20A

Transfer Case Rebuild Kit, Bearing and Seal Kit, Dana 20 with Cast Iron Case, 30mm I.D. Front Output Bearing, Chevy, Jeep, Dana 20, Kit

Part Number: SPZ-78297

3.0 out of 5 stars ( 1 )

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USA Standard Gear Master Overhaul Kits ZK D44

Ring and Pinion Gear Installation Kits, Master Overhaul Kits, 10-bolt, 31-spline, Standard Ring Gear Rotation, Dana 44, Front, Chevy, Dodge, Ford, Kit

Part Number: SPZ-37008

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2006 GM 8.5 in. 3.42 Gears

Ring and Pinion Gears,USA Standard 8.5" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.781" Carrier Bearing Journal

Part Number: SPZ-10717

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2023 GM 8.6 in. 4.11 Gears

Ring and Pinion Gears,USA Standard 8.6" GM, 4.11 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10734

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 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 F8.8-456 Ford 8.8 in. 4.56 Gears

Ring and Pinion Gears, 4.56:1 Ratio, 30-spline, Standard Ring Gear Rotation, Ford 8.8 in., Set

Part Number: SPZ-36126

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

USA Standard Gear Manual Transmission Bearing Kits ZMBK131A

Manual Transmission Bearing and Seal Overhaul Kit, Manual Transmission Bearing and Seal Overhaul Kit

Part Number: SPZ-ZMBK131A

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

USA Standard Master Overhaul kit for the 2000 and newer GM 7.5" and 7.625" differential

Part Number: SPZ-37050

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GMBOP-355 GM 8.2 in. BOP axle 3.55 Gears

Differential Ring and Pinion, USA Standard Ring & Pinion set for 8.2" Buick, Olds & Pontiac, 3.55

Part Number: SPZ-36368

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG F10.5-488-31 Ford 10.5 in. 4.88 Gears

Differential Ring and Pinion, USA standard ring & pinion gear set for '10 & down Ford 10.5" in a 4.88 ratio.

Part Number: SPZ-36433

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG D44-392 Dana 44 3.92 Gears

USA standard ring & pinion gear set for Dana 44 in a 3.92 ratio.

Part Number: SPZ-36269

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USA Standard Gear Ring and Pinion Sets ZG F8.8-513 Ford 8.8 in. 5.13 Gears

Ring and Pinion Gears, 5.13:1 Ratio, 30-spline, Standard Ring Gear Rotation, Ford 8.8 in., Set

Part Number: SPZ-36128

Not Yet Reviewed

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USA Standard Gear Ring and Pinion Sets ZG GM8.5-342 GM 8.5/8.6 in. 3.42 Gears

Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set

Part Number: SPZ-36213

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Motive Gear Ring and Pinion Sets GM10-342A GM 8.5/8.625 in. 3.42 Gears

4.5 out of 5 stars ( 16 )

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USA Standard Gear Ring and Pinion Sets ZG D44-354 Dana 44 3.54 Gears

Ring and Pinion Gears, 3.54:1 Ratio, 10-bolt, 26-spline, Standard Gear Rotation, Dana 44, Set

Part Number: SPZ-36039

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

USA Standard Gear Spider Gear Sets ZIKGM8.5-S-28

Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, 28-spline, 10-bolt, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: SPZ-39026

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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USA Standard Gear Ring & Pinion Gears, Axles, Driveshafts & More