1966 USA Standard Gear Differential & Rear-End Components

USA Standard Gear replacement spider gear set for Dana 60, 35 spline

Part Number: SPZ-39009

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USA standard ring & pinion gear set for Ford 8" in a 3.80 ratio.

Part Number: SPZ-36118

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Ring and Pinion Gears, 3.08:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.875 in. Truck, Set

Part Number: SPZ-36173

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Estimated Ship Date: Nov 24, 2025 if ordered today

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USA Standard Ring & Pinion gear set for Chrysler 9.25" in a 3.21 ratio

Part Number: SPZ-36017

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Ring and Pinion Gears, 4.56:1 Ratio, 29-spline, Standard Ring Gear Rotation, Chrysler 9.25 in., Set

Part Number: SPZ-36021

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Ring and Pinion Gears, 3.73:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 70, Set

Part Number: SPZ-36088

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USA Standard Ring & Pinion gear set for Dana 70 in a 4.11 ratio

Part Number: SPZ-36089

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USA Standard Ring & Pinion gear set for Dana 70 in a 4.56 ratio

Part Number: SPZ-36090

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USA Standard Master Overhaul kit Dana44, Kit

Part Number: SPZ-37084

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

Part Number: SPZ-36179

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Ring and Pinion Gears, 4.86:1 Ratio, 10-bolt, 28-spline, Standard Gear Rotation, Ford, 9 in., Set

Part Number: SPZ-36143

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Ring and Pinion Gears, 3.00:1 Ratio, 28-spline, Standard Rotation, Ford 9 in., Ford, Lincoln, Mercury, Rear, Set

Part Number: SPZ-36133

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Ring and Pinion Gears, 3.73:1 Ratio, 25-spline, Standard Ring Gear Rotation, GM 8.2 in., Set

Part Number: SPZ-36205

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Ring and Pinion Gears, 3.73:1 Ratio, 30-spline, Standard Rotation, GM 8.875 in., Buick, Chevy, Pontiac, Rear, Set

Part Number: SPZ-36168

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USA Standard Master Overhaul kit for Chrysler 8.75" #89 housing with 25520/90 differential bearings

Part Number: SPZ-37094

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Ring and Pinion Gears, 4.88:1 Ratio, 10-bolt, 26-spline, Standard Gear Rotation, Dana 44, Set

Part Number: SPZ-36047

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Ring and Pinion Gears, 4.56:1 Ratio, 27-spline, Standard Ring Gear Rotation, Chrysler 8.25 in., Set

Part Number: SPZ-36012

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USA Standard Master Overhaul kit for Ford Daytona 9" LM104911 differential and Daytona Pinion support

Part Number: SPZ-37040

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USA Standard Master Overhaul kit, Chrysler, 8.75 in., 489 Case, Kit

Part Number: SPZ-37091

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USA Standard Ring & Pinion gear set for Ford 9" in a 6.50 ratio

Part Number: SPZ-36153

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Ring and Pinion Gears, 3.89:1 Ratio, Standard Ring Gear Rotation, Ford 9 in., Set

Part Number: SPZ-36138

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USA Standard Ring & Pinion gear set for Ford 9" in a 5.67 ratio

Part Number: SPZ-36148

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Ring and Pinion Gears, 4.56:1 Ratio, 28-spline, Standard Rotation, Ford 9 in., Ford, Lincoln, Mercury, Rear, Set

Part Number: SPZ-36141

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Ring and Pinion Gears, 3.90:1 Ratio, 27-spline, Standard Ring Gear Rotation, Chrysler 8.25 in., Set

Part Number: SPZ-36010

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USA Standard Ring & Pinion gear set for Dana 44 in a 5.89 ratio

Part Number: SPZ-36054

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