Sonnax Transmission Parts

Since 1978, Sonnax Transmission Company has specialized in the cutting-edge design of top-quality performance and OEM replacement transmission parts. Summit Racing carries...

Since 1978, Sonnax Transmission Company has specialized in the cutting-edge design of top-quality performance and OEM replacement transmission parts. Summit Racing carries a large selection of Sonnax transmission and drivetrain parts, including slip yokes, throttle cable brackets, input drum reinforcement kits, hydraulic line pressure booster kits, and more. Order your Sonnax transmission parts from Summit Racing today!

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Results 1 - 25 of 934

Sonnax Slip Yokes T3-3-2431HP

Yoke, 4L80E, TH400, Chromoly, 32-Spline, 1350 U-Joint, 6.370 in. Long, Each

Part Number: SOX-T3-3-2431HP

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Slip Yokes T3-3-2491HP

Yoke, FMX, T-56, Chromoly, 31-Spline, Spicer 1350 Joint Style, 6.44 in. Length

Part Number: SOX-T3-3-2491HP

4.94 out of 5 stars ( 16 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Flanged Yokes T35-GMFD-01K

Flange Yoke, Aluminum, 1350, 3-Bolt Flange, Each

Part Number: SOX-T35-GMFD-01K

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Clutch Hubs 34322-02K

Clutch Hub, Full, Forged, Extreme Duty, GM, 4L80E, 4L85E, TH400, TH425, Kit

Part Number: SOX-34322-02K

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Zip Kits 6L45-6L90-ZIP

Shift Kit, Zip Kit, Chevy, Kit

Part Number: SOX-6L45-6L90ZIP

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Premium Planetary Assemblies 28180G-01

Automatic Transmission Gears, Premium, Planetary Type, Steel, 1.80:1 First Gear Ratio, Long Output Shaft, GM, Powerglide, Kit

Part Number: SOX-28180G-01

Not Yet Reviewed

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Smart-Tech Input Housing Kits 77733-10KB

Input Housing, SMART-TECH®, W/298mm Style HD Shaft, 700-R4, 4L60E

Part Number: SOX-77733-10KB

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 2, 2025 if ordered today

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Estimated Ship Date: Jun 2, 2025 if ordered today

Sonnax SmartShell Heavy-Duty Reaction Shell Kits 77749-02K

Sun Shell, SmartShell, Heavy Duty Reaction, 4L60, 4L60E, 4L65E, 4L70E, Each

Part Number: SOX-77749-02K

4.68 out of 5 stars ( 19 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Flanged Yokes for 2015-2020 CHALLENGER - T35-ALFY-07

Yoke, 6-Bolt Adapter Flange Yoke, Tremec TR-6060, Chrysler 210mm Differential, Each

Part Number: SOX-T35ALFY07

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Shift Improver Performance Packs HP-4L80E-01

Automatic Transmission Valve Body, GM 4L80-E, 4L85-E, Performance, Each

Part Number: SOX-HP-4L80E-01

Not Yet Reviewed

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Smart-Tech Direct Clutch Drum and Shaft Kits 76656-01K

Clutch Drum, Smart-Tech, Direct, Steel, Ford, 4R70E, 4R70W, 4R75E, 4R75W, Kit

Part Number: SOX-76656-01K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Servo Piston Kits 28821-10K

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

Part Number: SOX-28821-10K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Heavy-Duty Automatic Transmission Output Shafts 74678L-HD

Automatic Transmission Output Shaft, Heavy-Duty, 300M Steel, RWD Only, GM, 4L60E, 4L65E, 4L70E, Each

Part Number: SOX-74678L-HD

Not Yet Reviewed

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Slip Yokes T3-3-5571HP

Yoke, Forged Chromoly, 1350, TH400, 32-Spline, 5.380 in. Barrel Length, Each

Part Number: SOX-T3-3-5571HP

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Vacuum Test Stand Kits VACTEST-01K

Vacuum Test Stand Kit, Brass Needle Valve, Test Plate, Push-to-Connect Fittings, Testing Tip Adapter Tube, Sold as a Kit

Part Number: SOX-VACTEST-01K

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Valve Bodies CHR146

Automatic Transmission Valve Body, Remanufactured, Automatic Valve Body Style, Cast Iron, Standard Shift Pattern, Daimler, Each

Part Number: SOX-CHR146

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Heavy-Duty Reaction Shaft Kits 74602-01K

Automatic Transmission Rebuild Components, Reaction Shaft, GM, 4L60, 4L60E, 4L65E, 4L70E, Kit

Part Number: SOX-74602-01K

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Slip Yokes T3-3-5551HP

Yoke, TH400 Transmission, Chromoly, 32-Spline, Spicer 1350 Joint Style, 8.810 in. Overall Length, Each

Part Number: SOX-T3-3-5551HP

4.33 out of 5 stars ( 12 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Slip Yokes T3-3-6081HP

Yoke, Powerglide Transmission, Chromoly, 27-Spline, Spicer 1350 Joint Style, 5.47 in. Length, Each

Part Number: SOX-T3-3-6081HP

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Super-Hold Servo Kits 77911-03K

Servo, Super-Hold, 2nd Gear, Billet Aluminum, GM, 4L60, 4L60E, 4L65E, 4L70E, Kit

Part Number: SOX-77911-03K

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Primary and Secondary Pressure Sensors 33417N

Automatic Transmission Rebuild Components, Pressure Sensor, Primary/Secondary, OEM-style, for JF010E/JF011E and F1CJA, Each

Part Number: SOX-33417N

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Slip Yokes T3-3-2491S

Yoke, Slip Type, 31-spline, Chromoly, 5.47 in. Overall Length, Spicer 1350, At Transmission Yoke Position, Tremec Magnum-F, Each

Part Number: SOX-T3-3-2491S

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Shift Improver Performance Packs HP-4L60E-01

Shift Improver Performance Pack, 4L60E, 4L65E, 4L70E, Buick, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: SOX-HP-4L60E-01

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Automatic Transmission Case Bushings 34006-SPB

Automatic Transmission Case Bushing, Thrust Bearing, Two 0.010 in. Shims, Two 0.015 in. Shims, GM, 4L80E, 4L85E, TH400, Kit

Part Number: SOX-34006-SPB

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

Sonnax Slip Yokes T3-3-2431CBHP

Yoke, Slip, 32 Spline, Chromoly, Spicer 1350, 6.37 in. Length, Borg Warner/GM/Muncie/Saginaw, Each

Part Number: SOX-T332431CBHP

4.8 out of 5 stars ( 10 )

Estimated Ship Date: Tuesday 5/27/2025

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Estimated Ship Date: Tuesday 5/27/2025

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