FORD 6.4L/390 USA Standard Gear Parts and Accessories

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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Estimated Ship Date: Monday 1/26/2026

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Ring and Pinion Gears, 3.54:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 70, Set

Part Number: SPZ-36087

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Ring and Pinion Gears, 3.25:1 Ratio, 28-spline, Standard Rotation, Ford 9 in., Ford, Lincoln, Mercury, Rear, Set

Part Number: SPZ-36134

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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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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Estimated Ship Date: Feb 9, 2026 if ordered today

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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 1/26/2026

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

Part Number: SPZ-36066

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Ring and Pinion Gears, 3.73:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set

Part Number: SPZ-36074

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Estimated Ship Date: Feb 9, 2026 if ordered today

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USA Standard Ring & Pinion gear set for Dana 44 Reverse rotation in a 3.73 ratio

Part Number: SPZ-36064

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Estimated Ship Date: Feb 9, 2026 if ordered today

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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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Estimated Ship Date: Monday 1/26/2026

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Ring and Pinion Gears, 3.70:1 Ratio, Standard Ring Gear Rotation, Ford 9 in., Set

Part Number: SPZ-36137

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Ring and Pinion Gears, 5.38:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36053

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Estimated Ship Date: Feb 6, 2026 if ordered today

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Ring and Pinion Gears, 5.13:1 Ratio, 26-spline, Reverse Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36068

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Estimated Ship Date: Feb 9, 2026 if ordered today

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

Part Number: SPZ-36044

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Ring and Pinion Gears, 5.13:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set

Part Number: SPZ-36078

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Ring and Pinion Gears, 5.13:1 Ratio, 10-bolt, 28-spline, Standard Gear Rotation, Ford, 9 in., Set

Part Number: SPZ-36145

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Ring and Pinion Gears, 3.50:1 Ratio, 28-spline, Standard Ring Gear Rotation, Ford 9 in., Set

Part Number: SPZ-36135

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Estimated Ship Date: Feb 9, 2026 if ordered today

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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: Monday 1/26/2026

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USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offe

Part Number: SPZ-36315

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Estimated Ship Date: Feb 9, 2026 if ordered today

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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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Estimated Ship Date: Feb 9, 2026 if ordered today

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

Part Number: SPZ-36138

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 9, 2026 if ordered today

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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: Feb 9, 2026 if ordered today

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USA Standard Gear standard spider gear set for Ford 9", 31 spline, 4-pinion design

Part Number: SPZ-39018

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Estimated Ship Date: Feb 5, 2026 if ordered today

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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: Feb 6, 2026 if ordered today

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USA Standard Ring & Pinion gear set for Ford 8" in a 3.00 ratio

Part Number: SPZ-36115

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Estimated Ship Date: Feb 9, 2026 if ordered today

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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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Estimated Ship Date: Feb 6, 2026 if ordered today

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