Performance Transmission & Drivetrain at Summit Racing

Sonnax Hydraulic Line Pressure Booster Kits 4L80E-LB1

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

Part Number: SOX-4L80E-LB1

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Heavy-Duty Remanufactured Valve Bodies GM053-HD

HD REMAN VALVE BODY

Part Number: SOX-GM053-HD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Transmission Specialties Billet Aluminum TH400 Valve Bodies 4009N

Transmission Specialties Billet Aluminum TH400 Valve Bodies 4009N

Automatic Transmission Valve Body, Trans-Brake Valve Body, Full Manual, Billet Aluminum, Chevy, TH400, Reverse Shift Pattern, Each

Part Number: TOS-4009N

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

TCI Outlaw Shifters 611323

Automatic Transmission Shifter, Outlaw, GM, Powerglide, Each

Part Number: TCI-611323

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Line Pressure Booster Kits 77805E-K

TCC APPLY VALVE KIT

Part Number: SOX-77805E-K

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Hydraulic Line Pressure Booster Kits 4L60E-LB2

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: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Hydraulic Line Pressure Booster Kits 4L60E-LB1

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 4L60E, 4L65E, 4L70E, Early Pump, 1.907 in. Long, Kit

Part Number: SOX-4L60E-LB1

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATI Wicked Quick Valve Bodies ATI403085CN

Automatic Transmission Valve Body, Full Manual, Billet Aluminum, Reverse, Clean Neutral, TH400, Each

Part Number: ATI-403085CN

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Line Pressure Booster Kits RFE-LB1

Pressure Booster, Line Pressure, Electric, Kit

Part Number: SOX-RFE-LB1

4.43 out of 5 stars ( 14 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Heavy-Duty Remanufactured Valve Bodies F095HD

HD REMANUFACTURED VALVE BODY

Part Number: SOX-F095HD

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Hydraulic Line Pressure Booster Kits 700R4-LB1

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 200-4R, 4L60, Kit

Part Number: SOX-700R4-LB1

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Hydraulic Line Pressure Booster Kits 6L80-LB1

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 6L50, 6L80, 6L90, Kit

Part Number: SOX-6L80-LB1

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

TCI FAST-GATE Automatic Shifters 616544

Automatic Transmission Shifter, Fast-Gate, Right Hand Drive, Cable Operated, Round Black Knob, 3/4-Speed, Forward Pattern, Chevy, Chrysler, Ford, Each

Part Number: TCI-616544

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Hydraulic Line Pressure Booster Kits 77917-500

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 200-4R, 4L60, O-Ring Style, Kit

Part Number: SOX-77917-500

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

TCI Outlaw-X Shifters 630005BL

Outlaw-X Blackoutfor GM 4l60E/4L80E w/ Buttons

Part Number: TCI-630005BL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATI Wicked Quick Valve Bodies ATI403085

Automatic Transmission Valve Body, Full Manual, Billet Aluminum, Reverse, Each

Part Number: ATI-403085

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Isolator Sleeve Kits 77754-ISO

SLEEVE KIT

Part Number: SOX-77754-ISO

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

TransGo Automatic Transmission TFSC Shift Kits SK TFSC

SHIFT KIT Valve Body Repair Kit, Torqueflite 3SPD SHIFT KIT® Valve Body Repair Kit

Part Number: TRG-SKTFSC

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

TCI Outlaw Shifters 611523

Automatic Transmission Shifter, Outlaw Series, Cable Operated, Powerglide, Pistol Grip, Each

Part Number: TCI-611523

4.63 out of 5 stars ( 8 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

TCI Outlaw Shifters 616531

Automatic Shifter, Outlaw, Forward Shift Pattern, without Cover, Pistol Grip, GM/Ford/Mopar, Each

Part Number: TCI-616531

4.95 out of 5 stars ( 19 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Signal Accumulator Pistons 154740-06K

Automatic Transmission Signal Accumulator Pistons, Aluminum, Chevy, GMC, Cadillac, Kit

Part Number: SOX-154740-06K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Hydraulic Line Pressure Booster Kits 350-LB1

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, TH350, TH350C, Kit

Part Number: SOX-350-LB1

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Sure Cure® Automatic Transmission Rebuild Kits SC-4L80E

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 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Sonnax Hydraulic Line Pressure Booster Kits 34200-10K

BOOST VALVE KIT

Part Number: SOX-34200-10K

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATI Wicked Quick Valve Bodies ATI403086

Automatic Transmission Valve Body, Full Manual, Billet Aluminum, Forward, TH400, Each

Part Number: ATI-403086

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Performance & Replacement Transmission & Drivetrain Parts