Transmission Specialties - Free Shipping on Orders Over $109 at Summit Racing

Transmission Specialties Lock-Up Street/Strip 1,800-2,400 Stall Torque Converter 124L80HS

Transmission Specialties Lock-Up Street/Strip 1,800-2,400 Stall Torque Converter 124L80HS

Torque Converter, Lockup, Balanced, Billet Cover and Piston, 11.5 in., 4L80E, GM, Small/Big Block Chevy, Each

Part Number: TOS-124L80HS

5.0 out of 5 stars ( 1 )

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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

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Transmission Specialties Powerglide Billet NASA Input Shafts 2517NASA

Automatic Transmission Input Shaft, Billet, NASA, Powerglide to Turbo with Rings, GM, Each

Part Number: TOS-2517NASA

Not Yet Reviewed

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Transmission Specialties Powerglide Output Shafts with Carriers 2540S

Automatic Transmission Output Shaft, Carrier, 1.80 Gear, Steel, GM, Powerglide, Each

Part Number: TOS-2540S

Not Yet Reviewed

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Transmission Specialties Powerglide Performance Racing Transmissions 2512-2500

PROLINE 2500 W/TBRAKE-1.80 GEARS, 300M OUTPUT, PRO-DEEP PAN

Part Number: TOS-2512-2500

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Transmission Specialties Big Shot XHD 4,100-4,500 Stall Torque Converter 10000XHSXHD

GM 10" EXTRA HS XHD-4100-4500 RPMS-WITH MECHANICAL DIODE SPRAG

Part Number: TOS-10000XHSXHD

Not Yet Reviewed

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Transmission Specialties Powerglide Front Pump Assemblies 2508A

Automatic Transmission Pump, 7-Bolt, Front, GM, Powerglide, Each

Part Number: TOS-2508A

Not Yet Reviewed

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Transmission Specialties TH400 Front Pump Assemblies 4063

Front Pump, TH400 Pump, Bolt-in, Forged Steel, GM, Each

Part Number: TOS-4063

Not Yet Reviewed

Estimated Ship Date: Aug 28, 2025 if ordered today

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Estimated Ship Date: Aug 28, 2025 if ordered today

Transmission Specialties 4L80E 300M Extended Spline Input Shafts 4L80SH

Automatic Transmission Input Shaft, 4L80E 300M Extended Spline Input Shafts, Chevrolet, Each

Part Number: TOS-4L80SH

2.0 out of 5 stars ( 2 )

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Transmission Specialties Lock-Up Street/Strip 2,500-2,900 Stall Torque Converter 10090XLS

10" 4L80E BILLET COVER AND PISTON FOR 4L80E TRAN--2500-2900 RPMS

Part Number: TOS-10090XLS

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Transmission Specialties Powerglide SFI One-Piece Aluminum Transmission Cases 2505

Automatic Transmission Case, Powerglide, Aluminum, Natural, SFI 4.1, GM, Each

Part Number: TOS-2505

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Sep 2, 2025 if ordered today

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Estimated Ship Date: Sep 2, 2025 if ordered today

Transmission Specialties Billet Forward Clutch Hubs 4044

Automatic Transmission Clutch Hub, Billet Forward Clutch Hub, High Gear Position, Steel, GM, THM400, Each

Part Number: TOS-4044

Not Yet Reviewed

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Transmission Specialties Lock-Up Street/Strip 2,500-2,800 Stall Torque Converter 10091XLS

10" 4L80E BILLET COVER AND PISTON FOR 4L80E MOTOR-2500-2900 RPMS

Part Number: TOS-10091XLS

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Transmission Specialties Big Shot XHD 3,300-3,700 Stall Torque Converter 10400MSXHD

3300-3700 RPMS 727

Part Number: TOS-10400MSXHD

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Transmission Specialties Lock-Up Street/Strip 2,900-3,300 Stall Torque Converter 10090LS

Torque Converter, Lockup, Balanced, Billet Cover and Piston, 4L80E, LS1, Each

Part Number: TOS-10090LS

Not Yet Reviewed

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Transmission Specialties Lock-Up Street/Strip 2,900-3,300 Stall Torque Converter 10091LS

Torque Converter, Lockup, Balanced, Billet Cover and Piston,10 in., 4L80E, GM, Small Block Chevy, Each

Part Number: TOS-10091LS

Not Yet Reviewed

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Transmission Specialties Trans-Brake Solenoids 2515

Solenoid, Trans-Brake, Aluminum, Natural, GM, Powerglide, Each

Part Number: TOS-2515

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Transmission Specialties Powerglide Billet 300M Input Shafts 2517M

Automatic Transmission Input Shaft, Ringless, Billet, 300M Steel, Powerglide to Turbo with Bushing, Maximum 1,150 hp, GM, Each

Part Number: TOS-2517M

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Transmission Specialties Powerglide 4340 Steel Input Shafts 2518

Automatic Transmission Input Shaft, Hardened, 4340 Steel, Powerglide, GM, Each

Part Number: TOS-2518

Not Yet Reviewed

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Transmission Specialties Big Shot XHD 2,900-3,300 Stall Torque Converter 10000LSXHD

GM T-350-400 BIG SHOT 10 LS-XHD 2900-3300 RPMS-WITH MECHANICAL DIODE SPRAG

Part Number: TOS-10000LSXHD

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Transmission Specialties Lock-Up Street/Strip 3,300-3,700 Stall Torque Converter 10090MS

10" 4L80E BILLET COVER AND PISTON FOR 4L80E TRAN--3300-3700 RPMS

Part Number: TOS-10090MS

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Transmission Specialties Big Shot XHD 3,300-3,700 Stall Torque Converter 10000MSXHD

GM TH350-400-XHD 3300-3700 RPMS-WITH MECHANICAL DIODE SPRAG

Part Number: TOS-10000MSXHD

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Transmission Specialties Powerglide Output Shafts with Carriers 2540S 300S

Automatic Transmission Output Shaft, Carrier, 1.80 Gear, 300M Steel, Shorty, GM, Powerglide, Each

Part Number: TOS-2540S300S

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Transmission Specialties Powerglide Output Shafts with Carriers 2540S 300L

Automatic Transmission Output Shaft, Carrier, 1.80 Gear, 300M Steel, Long, GM, Powerglide, Each

Part Number: TOS-2540S300L

Not Yet Reviewed

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Transmission Specialties Turbo 400 Failsafe Racing Transmissions 40022

T-400 FAILSAFE-W/ AFTERMARKET 2 PIECE CASE

Part Number: TOS-40022

Not Yet Reviewed

Estimated Ship Date: Aug 20, 2025 if ordered today

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Estimated Ship Date: Aug 20, 2025 if ordered today

Transmission Specialties Parts and Accessories