2015 Ring and Pinion Gears - 3.90:1 Ring and Pinion Ratio - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Motive Gear Ring and Pinion Sets GM10-390 GM 8.5/8.6 in. 3.90 Gears

Gear, Ring and Pinion, 3.90:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-390

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-390 GM 8.5/8.6 in. 3.90 Gears

Ring and Pinion Gears, 3.90:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: YGA-24159

5.0 out of 5 stars ( 3 )

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Yukon Gear & Axle Ring and Pinion Sets YG GM8.6-390IRS GM 8.6 in. IRS/ 218mm AAM 3.90 Gears

Ring and Pinion Gears, 10-bolt, 3.90:1 Ratio, Standard Ring Gear Rotation, GM 8.6 in. IRS, Set

Part Number: YGA-24574

Not Yet Reviewed

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Richmond Gear Ring and Pinion Sets 49-0034-1 GM 8.5/8.6 in. 3.90 Gears

Gear, Ring and Pinion, 3.90:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4900341

4.67 out of 5 stars ( 9 )

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Richmond Gear EXCel Ring and Pinion Sets CR925390 Chrysler 9.25 in. 3.90 Gears

Ring and Pinion Kit

Part Number: RMG-CR925390

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

SVL Drivetrain Ring and Pinion Gear Sets 2020954 GM 8.5/8.6 in. 3.90 Gears

Ring & Pinion Gear Set GM 10 Bolt 8.5" / 3.90 Ratio

Part Number: SVL-2020954

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2084 Chrysler 9.25 in. ZF 3.90 Gears

Ring and Pinion Gears,Yukon Gear & Axle ZF 9.25" CHRYSLER, 3.90 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: YGA-10479

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG C9.25B-390B Chrysler 9.25 in. ZF 3.90 Gears

Ring and Pinion Gears, 3.90:1 Ratio, 29-spline, Standard Ring Gear Rotation, Chrysler 9.25 in. ZF, Set

Part Number: YGA-24639

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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USA Standard Gear Ring and Pinion Sets ZG GM8.5-390 GM 8.5/8.6 in. 3.90 Gears

Ring and Pinion Gear, 3.90:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36215

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Motive Gear Performance Ring and Pinion Sets GZ85390 GM 8.6 in. IRS/ 218mm AAM 3.90 Gears

Ring and Pinion Gears, 3.90:1, 32-spline Pinion, 10-bolt, GM 218mm, AAM, Set

Part Number: MGR-GZ85390

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2084 Chrysler 9.25 in. ZF 3.90 Gears

Ring and Pinion Gears,USA Standard ZF 9.25" CHRYSLER, 3.90 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10795

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

USA Standard Gear Ring and Pinion Sets ZG C9.25B-390B Chrysler 9.25 in. ZF 3.90 Gears

Differential Ring and Pinion, USA Standard Ring & Pinion gear set for '11 & up Chrysler 9.25 ZF in a 3.90 ratio

Part Number: SPZ-36359

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today