Sonnax Transmission Company Transmissions

Plug Kit, 3-4 Shift, Kit

Part Number: SOX-7796408K

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Servo Piston, 2nd Gear Type, Billet Aluminum, Servo Cover, Pipe Plug, Two Seal Rings, Kit

Part Number: SOX-22301B-01K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 200-4R, 4L60, Kit

Part Number: SOX-700R4-LB1

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Stator Support Shaft, GM, TH400, Each

Part Number: SOX-34910S-01

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Governor Gear Kit, 4L60, 700R4, Kit

Part Number: SOX-702

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Automatic Transmission Servo Springs, Servo Return Springs, GM, Powerglide, Each

Part Number: SOX-28133-HD

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Automatic Transmission Rebuild Components, Forward Clutch Hub Washer, Front, Steel, GM, 4L80E, 4L85E, TH400, TH425, Set of 5

Part Number: SOX-34298-078

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Shift Shaft, 4L80E, Each

Part Number: SOX-38511-03K

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Automatic Transmission Valve Body, Remanufactured, Automatic Valve Body Style, Cast Iron, Standard Shift Pattern, without Solenoid, Daimler, Each

Part Number: SOX-CHR145

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• Core Charge $75.00
• Drop Ship
• Free Shipping
• $10.00 Summit Bucks
• Special Order

4-3 SEQUENCE VALVE KIT

Part Number: SOX-77964-14K

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Reverse Clutch Pack Retaining Ring, Automatic Transmission Rebuild Component, Chevy, Powerglide, Each

Part Number: SOX-28709

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Servo Piston, 2nd Gear Type, Billet Aluminum, Servo Cover, Two PTFE Seals, Ford, C-4, C-5, Kit

Part Number: SOX-K13259C

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 Summit Bucks

Automatic Transmission Rebuild Components, Accumulator Check Valve, GM, 4L60, 4L60E, 4L65E, 4L70E, Each

Part Number: SOX-74480D

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

FRIC KIT, REV, INCREASED RADIUS POWERGLIDE 1.58 SERVICE PART

Part Number: SOX-28131-FRK

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 Summit Bucks

SEPARATOR PLATE

Part Number: SOX-35740-048

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Automatic Transmission Rebuild Components, Planetary Rebuild Kit, 4L80E, TH400, Kit

Part Number: SOX-34875RK

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Automatic Transmission Rebuild Components, Servo Release Check Valve, GM, 4L60, 4L60E, 4L65E, 4L70E, Kit

Part Number: SOX-77701-076

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Automatic Transmission Bushings, Front Sun Gear, GM Powerglide, Each

Part Number: SOX-8436

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Small Parts Kit, TH400, Seals, Retainers, Bushing, Plates, Spring, Kit

Part Number: SOX-28755-SPK

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Servo Apply Lever, Automatic Transmission Rebuild Component, C-6, Each

Part Number: SOX-36916E

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Automatic Transmission Carrier Thrust Washers, 2.749 in. O.D., 0.106 in. Thickness, 2.082 in. I.D., Ford, GM, Each

Part Number: SOX-56241

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

4L80E INTERMEDIATE / MAIN SHAFT / Aermet

Part Number: SOX-34672-05

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 Summit Bucks

Automatic Transmission Accumulator Pistons, Pinless, Aluminum, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Each

Part Number: SOX-77987-01K

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

GOVERNOR

Part Number: SOX-731

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 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 11/10/2025

• $10.00 Summit Bucks