Automatic Transmission Shift Kits

Shift Kit, Automatic Type, Includes .500 in. Boost Valve, GM, 4L60E, Each

Part Number: TRG-4L60E-HD2

4.75 out of 5 stars ( 59 )

Estimated Ship Date: Today

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Shift Improver Performance Pack, 4L60E, 4L65E, 4L70E, Buick, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: SOX-HP-4L60E-01

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Performance Shift Kit, 4L60E, 4L65E, 4L70E, Kit

Part Number: TRG-4L60E-PRO

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Transmission Upgrade Kit, Trans-Scat, Chevy, GMC, 4L60E, LT1, LS1, Each

Part Number: TCI-376001

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Dec 2, 2026 if ordered today

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ATP Automatic Transmission Upgrade Kit

Part Number: ATP-SK2

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2026 if ordered today

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VALVE BODY KIT

Part Number: PIO-765022

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if ordered today

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