Sonnax Transmission Company Parts and Accessories

Yokes, Flange Style, Aluminum, 4-Bolt, 3.75 in. Bolt Circle, 1.56 in. Face to Centerline, Male Pilot Type, with Bearing Caps, for 1350 U-Joint, Each

Part Number: SOX-T3-2-119A

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Estimated Ship Date: Today

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• $10 Summit Bucks

Automatic Transmission Shift Kits, Zip Kit, with End Plugs, O-Rings, Solenoid Modulator, Boost/Accumulator/Lockup Control Valves, Lexus, Toyota, Kit

Part Number: SOX-S0001

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• $10 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: Today

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• $10 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 )

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Automatic Transmission Rebuild Components, Planetary Gear Stabilizer, GM, Powerglide, Kit

Part Number: SOX-28510-S2

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Vacuum Test Plate, Transmission, Automatic, GM, 4L80-E, 4L85-E, Kit

Part Number: SOX-34994-VTP

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GOVERNOR

Part Number: SOX-731

5.0 out of 5 stars ( 1 )

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Shift Kit, Zip Kit, ZF6HP-21, ZF6HP-28, ZF6HP-34, Kit

Part Number: SOX-ZF6-GEN2-ZIP

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Servo, Super-Hold, 2nd Gear, Billet Aluminum, GM, 200-4R, TH200, TH200C, Kit

Part Number: SOX-K65703

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Driveshaft Tubing, Aluminum, 0.125 in. Wall Thickness, 3.50 in. Diameter, 54 in. Length, Each

Part Number: SOX-TK350-125-54

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• Oversize $7.99
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Shift Kit, Zip Kit, 6R80, 6R100, Kit

Part Number: SOX-6R80L6R100ZI

5.0 out of 5 stars ( 1 )

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Reamer Kit, Carbide Reamer, Drill Jig, Kit

Part Number: SOX-77917-TLC

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Estimated Ship Date: Jan 2, 2026 if ordered today

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• $10 Summit Bucks
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Yoke, TH400 Transmission, Forged Steel, 32-Spline, Spicer 1310 Joint Style, 5.50 in. Length, Each

Part Number: SOX-T2-3-10431HP

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Shift Kit, Zip Kit, ZF6HP-19. ZF6HP-26, ZF6HP-32, Kit

Part Number: SOX-ZF6-053-ZIP

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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 )

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FRIC KIT, REV, INCREASED RADIUS POWERGLIDE 1.58 SERVICE PART

Part Number: SOX-28131-FRK

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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: Today

• $10 Summit Bucks

FORWARD SUN GEAR

Part Number: SOX-76612A-01

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Yoke, Automatic/Manual Transmission, Forged Steel, 27-Spline, Spicer 1330 Joint Style, 4.47 in. Length, Each

Part Number: SOX-T2-3-12081HP

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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SURE CURE KIT

Part Number: SOX-46-47RHE-ZIP

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SERVO COVER KIT SUPPORTED PIN

Part Number: SOX-28821-19K

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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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SOLENOID BLOCK

Part Number: SOX-56954L-C

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Estimated Ship Date: Dec 18, 2025 if ordered today

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• $10 Summit Bucks
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SLIP YOKE 27 SPLINE 1310 U-JOI

Part Number: SOX-T236081HP8XL

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Clutch Hub Heavy Duty, "E" Clutch ZF8HP70, Each

Part Number: SOX-35572-38T

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Estimated Ship Date: Dec 29, 2025 if ordered today

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• $10 Summit Bucks
• Special Order