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Sonnax Transmission Parts

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!

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!

Individual Parts

Results 1 - 25 of 938

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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

Part Number: SOX-T35-GMFD-01K

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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

Part Number: SOX-34322-02K

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

Shift Kit, Zip Kit, Chevy, Kit

Part Number: SOX-6L45-6L90ZIP

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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

Part Number: SOX-77749-02K

4.7 out of 5 stars ( 20 )

Estimated Ship Date: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

Automatic Transmission Gears, Input Carrier Kits, Front Carrier, Steel, 2.84:1 First Gear Ratio, 1.55:1 Second Gear, 1.00:1 Third Gear, GM, Kit

Part Number: SOX-77284-K

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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

Part Number: SOX-HP-4L80E-01

Not Yet Reviewed

Estimated Ship Date: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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

Part Number: SOX-28821-10K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

Overrun Clutch Valve, 4L80E/4L85E Automatic Transmission, Kit

Part Number: SOX-3420040K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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

Part Number: SOX-77767K

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 6/9/2025

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Estimated Ship Date: Monday 6/9/2025

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