Sonnax Transmission Company Parts and Accessories

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 12/8/2025

• Free Shipping
• $10 Summit Bucks

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

Part Number: SOX-74602-01K

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

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 12/8/2025

• Free Shipping
• $10 Summit Bucks

Automatic Transmission Rebuild Components, Governor, Blue Gear, GM, 4L60, Gasoline Engines, Each

Part Number: SOX-730

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

Governor, TH350, TH350C, Each

Part Number: SOX-350

4.14 out of 5 stars ( 7 )

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

Flange Yoke, Aluminum, Each

Part Number: SOX-T3-2-949A

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

Automatic Transmission Shift Kits, Zip Kit, with Boost Valve, O-Ring Plugs, Accumulator Pistons, Spring, Sleeves, Ford, 6R140, Kit

Part Number: SOX-6R140-ZIP

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

Yoke, AOD, C-4, T-10, T-5 Transmission, Forged Steel, 28-Spline, Spicer 1310 Joint Style, 6.5 in. Length, Each

Part Number: SOX-T2-3-8251HP

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

SERVO 200-4R HI PERF

Part Number: SOX-K65703-1

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

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: Monday 12/8/2025

• Free Shipping
• $10 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 12/8/2025

• Free Shipping
• $10 Summit Bucks

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

Part Number: SOX-34994-VTP

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 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 12/8/2025

• Free Shipping
• $10 Summit Bucks

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

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $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

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

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

Part Number: SOX-ZF6-GEN2-ZIP

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $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: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

Shift Kit, Zip Kit, 6R80, 6R100, Kit

Part Number: SOX-6R80L6R100ZI

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

Yoke, TH400 Transmission, Forged Steel, 32-Spline, Spicer 1310 Joint Style, 5.50 in. Length, Each

Part Number: SOX-T2-3-10431HP

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

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

Part Number: SOX-TK350-125-54

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Oversize $7.99
• $10 Summit Bucks

FORWARD SUN GEAR

Part Number: SOX-76612A-01

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

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

Part Number: SOX-ZF6-053-ZIP

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

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

Part Number: SOX-28510-S3

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

FRIC KIT, REV, INCREASED RADIUS POWERGLIDE 1.58 SERVICE PART

Part Number: SOX-28131-FRK

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

• Free Shipping
• $10 Summit Bucks

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: Monday 12/8/2025

• $10 Summit Bucks