Sonnax Transmission Company 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: Today

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

Part Number: SOX-HP-4L80E-01

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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 ( 4 )

Estimated Ship Date: Today

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Automatic Transmission Shift Kits, TCC Zip Kit, with O-Ring End Plugs, Converter Limit Valve, Regulator/Shuttle, Cadillac, Chevy, GMC, 8L45, 8L90, Kit

Part Number: SOX-8L458L90TCCZ

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Automatic Transmission Shift Kits, Shift Zip Kit, with Clutch Valves, Accumulator Pistons, Spring, Sleeves, Cadillac, Chevy, GMC, 8L45, 8L90, Kit

Part Number: SOX-8L458L90SHIF

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Automatic Transmission Shift Kits, Shift Improver, E4OD, 4R100, Sold as a Kit

Part Number: SOX-E4OD4R100ZIP

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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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: Today

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Shift Improver Performance Pack, 4R100, Ford, Kit

Part Number: SOX-HP-4R100-01

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ZIP KIT

Part Number: SOX-ZF8-ZIP

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ZIP KIT

Part Number: SOX-S0002

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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SURE CURE KIT

Part Number: SOX-46-47RHE-ZIP

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

Part Number: SOX-ZF6-GEN2-ZIP

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

Part Number: SOX-6R80L6R100ZI

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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

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Shift Kit, Zip Kit, ZF6HP-19. ZF6HP-26, ZF6HP-32, Kit

Part Number: SOX-ZF6-053-ZIP

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ZIPPER KIT

Part Number: SOX-AODE4R75EZIP

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Estimated Ship Date: Today

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ZIP KIT

Part Number: SOX-6T70-ZIP

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Estimated Ship Date: Oct 16, 2025 if ordered today

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THE SURE CURE KIT

Part Number: SOX-SC-AODE

Not Yet Reviewed

Estimated Ship Date: Oct 16, 2025 if ordered today

• Drop Ship
• Special Order