Sonnax Transmission Company Transmission & Drivetrain

Shift Kit, Zip Kit, Chevy, Kit

Part Number: SOX-6L45-6L90ZIP

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/1/2025

• Free Shipping
• $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: Monday 12/1/2025

• Free Shipping
• $10 Summit Bucks

Automatic Transmission Rebuild Components, Governor, Blue Gear, GM, 4L60, Gasoline Engines, Each

Part Number: SOX-730

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 12/1/2025

• Free Shipping
• $10 Summit Bucks

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

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• Free Shipping
• $10 Summit Bucks

Automatic Transmission Rebuild Set, with TV Cable Corrector Kit, Checkballs, etc., GM 4L60-E, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, Kit

Part Number: SOX-SC-4L60E

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• Free Shipping
• $10 Summit Bucks

Automatic Transmission Rebuild Components, Forward, Input Housing Sleeve, 4L60, 4L60E, 4L65E, 4L70E, Kit

Part Number: SOX-77733-52K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/1/2025

• Free Shipping
• $10 Summit Bucks

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: Monday 12/1/2025

• Free Shipping
• $10 Summit Bucks

Automatic Transmission Rebuild Kit, GM 700R4, 4L60, Kit

Part Number: SOX-SC4L60

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/1/2025

• Free Shipping
• $10 Summit Bucks

GOVERNOR

Part Number: SOX-731

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/1/2025

• Free Shipping
• $10 Summit Bucks

Automatic Transmission Rebuild Kits, Sure Cure Kit, with O-Ring Plug Ends, Boost Valve, Bushings, Springs, Cadillac, Chevy, GMC, 4L80-E, 4L85-E, Kit

Part Number: SOX-SC4L80E

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

PLANET REBUILD KIT HD

Part Number: SOX-28922-01HDK

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• Drop Ship
• Free Shipping
• $10 Summit Bucks
• Special Order