Sonnax Transmission Company Parts and Accessories

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 11/10/2025

• $10.00 Summit Bucks

Shift Improver Performance Pack, 4R100, Ford, Kit

Part Number: SOX-HP-4R100-01

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 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 11/10/2025

• $10.00 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 11/10/2025

• $10.00 Summit Bucks

Line Pressure Booster Kit, Hydraulic, Valve, Sleeve, Pressure Regulator Spring, O-rings, GM, TH400, Kit

Part Number: SOX-400-LB1

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Reamer, Oversized Pressure Regulator Valve, GM, Each

Part Number: SOX-77917-TL

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

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• $10.00 Summit Bucks

SPRING RETAINERS SET OF 5

Part Number: SOX-34554-12

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Reamer, TCC Valve, Each

Part Number: SOX-77754-R2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 Summit Bucks

Automatic Transmission Clutch Friction Plates, 4,5,6, .060 in. Thick, 6L80, 6L90, Powerglide, Each

Part Number: SOX-104120-03

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Servo, Externally Adjustable Low/Reverse, Aluminum, Blue Anodized, GM, TH400, Kit

Part Number: SOX-34914-20K

Not Yet Reviewed

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• $10.00 Summit Bucks

Throttle Cable Bracket, Steel, Fits Holley Carburetors, Each

Part Number: SOX-AS6-01

4.22 out of 5 stars ( 9 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Clutch Backing Plate, THM400, 4L80-E, Kit

Part Number: SOX-34144HD-01

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Automatic Transmission Clutch Friction Plates, 4,5,6, .078 in. Thick, 6L80, 6L90, Powerglide, Each

Part Number: SOX-104120-01

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Thrust Bearing, Replacement, Chevy, Powerglide, Each

Part Number: SOX-28321

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

TOOL KIT

Part Number: SOX-77754TL

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 4L60E, 4L65E, 4L70E, Early Pump, 1.907 in. Long, Kit

Part Number: SOX-4L60E-LB1

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Accumulator Piston, Billet Aluminum, Chrysler, 45RFE, 545RFE, 65RFE, 65RFE, 66RFE, 68RFE, Kit

Part Number: SOX-44894-01MK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 Summit Bucks

Automatic Transmission Clutch Friction Plates, 4,5,6, .090 in. Thick, 6L80, 6L90, Powerglide, Each

Part Number: SOX-104120-02

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Yoke, Powerglide Transmission, Forged Steel, 27-Spline, Spicer 1310 Joint Style, 5.47 in. Length, Each

Part Number: SOX-T2-3-6081HP

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 Summit Bucks

Oil Pump Bushing, Automatic Transmission Rebuild Component, AT540, Powerglide, TH350, TH400, Each

Part Number: SOX-34034T-01

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Servo, Super-Hold, 4th Gear, Billet Aluminum, Ford, AOD, Kit

Part Number: SOX-76890-17KP

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $10.00 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 4L60E, 4L65E, 4L70E, Late Pump, 1.810 in. Long, Kit

Part Number: SOX-4L60E-LB2

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

Automatic Transmission Rebuild Components, 3-5-R Apply Ring, GM, 6L80, Each

Part Number: SOX-104548-01

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

TCC Regulator, Isolator Valve, 4L60E, 4L65E, 4L70E, Kit

Part Number: SOX-77754-04K

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks

SHIFT LEVER KIT

Part Number: SOX-38512-03K

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $10.00 Summit Bucks