Sonnax Transmission Parts

Yoke, TH400, 4L80E Transmission, Forged Steel, 32-Spline, Spicer 1330 Joint Style, 6.76 in. Length, Each

Part Number: SOX-T2-3-10831HP

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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VALVE KIT

Part Number: SOX-104740-09K

Not Yet Reviewed

Estimated Ship Date: Today

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

Part Number: SOX-34914-20K

Not Yet Reviewed

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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: Today

Check Balls, 1/4 in. Diameter, Set of 10

Part Number: SOX-10000-08

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Today

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

Part Number: SOX-104548-01

Not Yet Reviewed

Estimated Ship Date: Today

VALVE BODY

Part Number: SOX-F06R140

Not Yet Reviewed

• Core Charge $150.00
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• Special Order

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: Today

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: Today

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

Part Number: SOX-34144HD-01

Not Yet Reviewed

Estimated Ship Date: Today

HI CLUTCH DRUM 10 FRICTION

Part Number: SOX-28756-01

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Automatic Transmission Shift Kits, Shift Improver, E4OD, 4R100, Sold as a Kit

Part Number: SOX-E4OD4R100ZIP

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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SPRING RETAINERS SET OF 5

Part Number: SOX-34554-12

Not Yet Reviewed

Estimated Ship Date: Today

Reamer, Oversized Pressure Regulator Valve, GM, Each

Part Number: SOX-77917-TL

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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

Part Number: SOX-77754-04K

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

*VALVE BODY

Part Number: SOX-F095

Not Yet Reviewed

Estimated Ship Date: Nov 17, 2025 if ordered today

• Core Charge $50.00
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Shift Improver Performance Pack, 4R100, Ford, Kit

Part Number: SOX-HP-4R100-01

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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REG SHUTTLE VALVE KIT

Part Number: SOX-154740-02K

Not Yet Reviewed

Estimated Ship Date: Today

Flange Yoke, 3-Bolt Adapter Flange Yoke, Spicer 1350, Aluminum, Natural, BMW, Toyota, Each

Part Number: SOX-T35-BMWF-01K

Not Yet Reviewed

Estimated Ship Date: Today

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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: Today

Yoke, Pinion yoke 9"Ford with 1350 U-Joint

Part Number: SOX-T9-28-1350FD

Not Yet Reviewed

Estimated Ship Date: Today

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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: Today

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VALVE BODY KIT

Part Number: SOX-104960-20K

Not Yet Reviewed

Estimated Ship Date: Today

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Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 4L80E, Kit

Part Number: SOX-4L80E-LB1

Not Yet Reviewed

Estimated Ship Date: Today

Clutch Hub, Carbon Steel, Powerglide, Each

Part Number: SOX-28304

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today