Sonnax Transmission Company Transmission & Drivetrain

Servo, Super-Hold, 4th Gear, Billet Aluminum, GM, 4L60, 4L60E, 4L65E, 4L70E, Kit

Part Number: SOX-77767K

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

Automatic Transmission Rebuild Components, Forward Clutch Piston, Billet, GM, 6L80, 6L90, Each

Part Number: SOX-104984-01

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

Automatic Transmission Rebuild Components, Pressure Switch Rebuild Kit, GM, 6L45, 6L50, 6L80, 6L90, 6T70, 6T75, Kit

Part Number: SOX-124740-70K

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

ZIP KIT

Part Number: SOX-ZF8-ZIP

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

Servo Piston, 2nd Gear Type, Billet Aluminum, Piston D-rings, Housing, GM, 4L60, 4L60E, 4L65E, 4L70E, Kit

Part Number: SOX-77701-04K

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

LOW/REVERSE SERVO PISTON

Part Number: SOX-34914-02

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

Low/Reverse Servo Piston, Heavy Duty, Billet Aluminum, GM, TH400, 4L80E, Each

Part Number: SOX-34914-01

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

Automatic Transmission Boost Valves, Oversized Pressure Regulator Valve, Sleeve, Spring, Drill Bit, Checkball, GM, 6L45, 6L50, 6L80, 6L90, Kit

Part Number: SOX-104520-07K

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

Servo Piston, Low Gear Type, Billet Aluminum, Servo Cover, Pipe Plug, Two Seal Rings, GM, Powerglide, Kit

Part Number: SOX-28821-05K

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/8/2025

• $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 12/8/2025

• $10 Summit Bucks

Automatic Transmission Rebuild Components, Low/Reverse Sprag Rebuild Kit, Steel, 6L80, Kit

Part Number: SOX-104642-80SK

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

PLANETARY WASHER KIT HD

Part Number: SOX-8415BK-HD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

Servo, Master Servo, Low Gear, Billet Aluminum, GM, Powerglide, Kit

Part Number: SOX-28821-08K

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

Automatic Transmission Rebuild Components, VALVE, LUBE REG PRESS REG, 45RFE/545RFE/65RFE/66RFE/68RFE

Part Number: SOX-44912-17K

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

STATOR SUPPORT SHAFT KIT

Part Number: SOX-77918S-K

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

SERVO COVER KIT SUPPORTED PIN

Part Number: SOX-28821-19K

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

BOOST VALVE KIT

Part Number: SOX-34200-10K

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

Flywheel/Flexplate Ring Gear, 141-Tooth, Steel, Ford 6.0L, Powerstroke Diesel, Each

Part Number: SOX-SRG-141FT

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, Ford, 4R70W, 4R75W, Kit

Part Number: SOX-4R70W-LB1

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• $10 Summit Bucks

VALVE ASSY BOOST

Part Number: SOX-35754-01K

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Drop Ship
• $10 Summit Bucks
• Special Order