CHEVROLET 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 Valve Body, GM 4L80-E, 4L85-E, Performance, Each

Part Number: SOX-HP-4L80E-01

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• Free Shipping
• $10 Summit Bucks

Automatic Transmission Valve Body, Heavy-Duty Remanufactured, Automatic Style, Cast Aluminum, Forward Shift Pattern, 4L60-E/4L65-E, Chevrolet, Kit

Part Number: SOX-GM054-HD

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/1/2025

• Core Charge $50.00
• 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 Brackets and Levers, Shifter Shaft, Includes Seal, GM, TH350/TH350C, Each

Part Number: SOX-35801-02K

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Monday 12/1/2025

• $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 Signal Accumulator Pistons, Aluminum, Chevy, GMC, Cadillac, Kit

Part Number: SOX-154740-06K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/1/2025

• $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 Components, Bearing/Race Kit, Sun/Internal, Center Support/Sun, GM, TH400/4L80-E/4L85-E, Kit

Part Number: SOX-SBK-G10

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Automatic Transmission Shift Lever, Bolt-Together, 4 Hole, Steel, Zinc Plated, Chevy, Powerglide, Each

Part Number: SOX-28431-05K

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Automatic Transmission Accumulator Pistons, Pinless, Aluminum, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: SOX-77998-03K

5.0 out of 5 stars ( 14 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Automatic Transmission Valve Body, Heavy-Duty, Remanufactured, Cast Iron, Standard Shift Pattern, 4L80-E, 4L85-E, Each

Part Number: SOX-GM033

Not Yet Reviewed

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

HD REMAN VALVE BODY

Part Number: SOX-GM053-HD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/1/2025

• Core Charge $50.00
• Free Shipping
• $10 Summit Bucks

Kickdown Component, TV Cable Corrector, GM 200, 200-4R, 200C, 4L60, Ford AOD, AXOD, Kit

Part Number: SOX-AS4-04K

4.73 out of 5 stars ( 11 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Band Adjustment Screw Kit, Automatic Transmission Rebuild Component, Chevy, Powerglide, Kit

Part Number: SOX-28612-01K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

LOW/REVERSE SERVO PISTON

Part Number: SOX-34914-02

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

SHIFT LEVER KIT

Part Number: SOX-38512-03K

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Thrust Bearing, Replacement, Chevy, Powerglide, Each

Part Number: SOX-28321

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

SPRING RETAINERS SET OF 5

Part Number: SOX-34554-12

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Manual Shift, Metric Flange Nuts, TH400, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: SOX-38511-05K

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Throttle Valve Cable Corrector, Edelebrock, GM 700-R4, 200-4R, Ford AOD

Part Number: SOX-AS5-05K

4.5 out of 5 stars ( 12 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks