Automatic Transmission Shift Kits

Shift Kit, Zip Kit, Chevy, Kit

Part Number: SOX-6L45-6L90ZIP

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Friday 12/26/2025

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• $10 Summit Bucks

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 ( 4 )

Estimated Ship Date: Friday 12/26/2025

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• $10 Summit Bucks

Automatic Transmission Valve Body, GM 4L80-E, 4L85-E, Performance, Each

Part Number: SOX-HP-4L80E-01

Not Yet Reviewed

Estimated Ship Date: Friday 12/26/2025

• Free Shipping
• $10 Summit Bucks

Automatic Shift Kit, 6L80, 6L80E, 6L90, 6L90E, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Kit

Part Number: TRG-SK6L80

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Friday 12/26/2025

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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: Friday 12/26/2025

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Shift Kit, Shift Improvement, ISO-CON Valve, GM, 4L60E, 4L65E, 4L70E, 4L75E, Each

Part Number: TRG-SK4L60E

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Friday 12/26/2025

Valve Body Electronics Upgrade Kit, 47RE, 48RE, Dodge, Kit

Part Number: BDD-1060605

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Friday 12/26/2025

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Automatic Transmission Shift Kits, Zip Kit, with Boost Valve, O-Ring Plugs, Accumulator Pistons, Spring, Sleeves, Ford, 6R140, Kit

Part Number: SOX-6R140-ZIP

Not Yet Reviewed

Estimated Ship Date: Friday 12/26/2025

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• $10 Summit Bucks

ZIP KIT

Part Number: SOX-S0002

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Friday 12/26/2025

• Free Shipping
• $10 Summit Bucks

Automatic Transmission Shift Kits, Zip Kit, with End Plugs, O-Rings, Solenoid Modulator, Boost/Accumulator/Lockup Control Valves, Lexus, Toyota, Kit

Part Number: SOX-S0001

Not Yet Reviewed

Estimated Ship Date: Friday 12/26/2025

• Free Shipping
• $10 Summit Bucks

Shift Improver Performance Pack, 4R100, Ford, Kit

Part Number: SOX-HP-4R100-01

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Friday 12/26/2025

• Free Shipping
• $10 Summit Bucks

ZIP KIT

Part Number: SOX-ZF8-ZIP

Not Yet Reviewed

Estimated Ship Date: Friday 12/26/2025

• $10 Summit Bucks

Shift Kit, Zip Kit, BMW, Ford, Infiniti, Lexus, Volkswagen, Volvo, Kit

Part Number: SOX-ZF6-6R60-ZIP

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Friday 12/26/2025

• Free Shipping
• $10 Summit Bucks

Specialty Components, Solenoid Switch Valve Refill Kit (.453 Diameter Only) Does not include tools.

Part Number: TRG-RFE-SV453-NT

Not Yet Reviewed

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Shift Improvement, without Auxiliary Valve Body, GM, 700R4, 4L60, Each

Part Number: TRG-SK700

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Friday 12/26/2025

Automatic Shift Kit, 45RFE, 545RFE, 68RFE, Chrysler, Dodge, Jeep, Ram, Kit

Part Number: TRG-SK45RFE

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Friday 12/26/2025

Automatic Transmission Shift Kit, Diesel and Gas Engines, Chrysler, Dodge, 42, 44, 46, 47, RE and RH, Kit

Part Number: TRG-SKTFODDIESEL

5.0 out of 5 stars ( 16 )

Estimated Ship Date: Friday 12/26/2025

Automatic Transmission Shift Set, Performance, with EPC Boost Pressure Relief Valve System, for 4L80E, 4L85E, Kit

Part Number: TRG-SK4L80E

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Friday 12/26/2025

Automatic Transmission Shift Kit, Gaskets, Jeep, Toyota, Kit

Part Number: TRG-340-HD2

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Friday 12/26/2025

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Shift Kit, Zip Kit, ZF6HP-21, ZF6HP-28, ZF6HP-34, Kit

Part Number: SOX-ZF6-GEN2-ZIP

Not Yet Reviewed

Estimated Ship Date: Friday 12/26/2025

• Free Shipping
• $10 Summit Bucks

Shift Kit, Shift Improvement, with Auxiliary Valve Body, GM, 700R4, 4L60, Each

Part Number: TRG-SK700-JR

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Friday 12/26/2025

Automatic Transmission Shift Kits, Valve Body Repair, AB60F, AB60E, A761E, A760H, A760E, A750F, A750E, Kit

Part Number: TRG-SKA750WTA

Not Yet Reviewed

Estimated Ship Date: Friday 12/26/2025

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Shift Kit, Performance, Chevy, GMC, Allison, 1000, 2000, 2400, Kit

Part Number: TRG-SKALLISON-JR

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Zip Kit, 6R80, 6R100, Kit

Part Number: SOX-6R80L6R100ZI

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Friday 12/26/2025

• Free Shipping
• $10 Summit Bucks

Automatic Transmission Shift Kit, Automatic Transmission Valve Body Repair Kit, 8L90E, Cadillac, Chevrolet, GMC, Kit

Part Number: TRG-SK-8L90

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Friday 12/26/2025

• Free Shipping