Performance & Replacement Transmission & Drivetrain Parts

Shift Kit, Automatic Type, Toyota, Chevy, Geo, Pontiac, A245, Each

Part Number: TRG-A245-HD2

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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TranZformer Gen 2, Electronic shift Kit for 2nd Gen vehicles

Part Number: ZAU-ZTZG2

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Transmission Upgrade Kit, Shift Improver, Ford, C-4, Each

Part Number: BMM-50262

2.33 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

Transmission Upgrade Kit, Shift Improver, Ford, C-4, Each

Part Number: BMM-50260

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Shift Kit, Automatic Type, for Nissan, Mercury, Infiniti, 4F2OE, Kit

Part Number: TRG-RE4F04A-HD2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 24, 2025 if ordered today

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Shift Kit, GF4A-EL, 4EAT-GF, Mazda, Kit

Part Number: TRG-SKGF4A-EL

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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SHIFT KIT® Valve Body Repair Kit

Part Number: TRG-180-C

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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Shift Kit, Automatic Type, Ford, AOD, Hi-Rev, Muscle Car Shifts, Each

Part Number: TRG-AOD-HP

4.31 out of 5 stars ( 16 )

Estimated Ship Date: Tomorrow

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Automatic Transmission Shift Kits, Valve Body Repair, AB60F, AB60E, A761E, A760H, A760E, A750F, A750E, Kit

Part Number: TRG-SKA750WTA

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Estimated Ship Date: Tomorrow

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ZIP KIT

Part Number: SOX-ZF8-ZIP

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• $10.00 Summit Bucks

Automatic Transmission Shift Kit, Reprogramming, 46RE, 47RE, 48RE, Kit

Part Number: TRG-TFRE-PRO

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Transmission Upgrade Kit, Shift Improver, GM, 200-4R, Each

Part Number: BMM-35265

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Automatic Transmission Shift Kits, THM 200-4R, 1981-90, Kit

Part Number: TRG-200-4R-HD2-A

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Estimated Ship Date: Tomorrow

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Automatic Transmission Shift Kit, Automatic Transmission Valve Body Repair Kit, Buick, Chevrolet, Oldsmobile, Pontiac, Saturn, Volvo, Kit

Part Number: TRG-SK4T65E

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

Reprogramming Kit Fits RL4F03A with TV cable

Part Number: TRG-RL4FO3A-HD2

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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Shift Kit, Filter, Gaskets, for TH350 or TH350C, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: ATP-SK1

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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Transmission Upgrade Kit, Transpak, GM, TH400, TH375, M40, Each

Part Number: BMM-20228

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Shift Improver, Chrysler, 727, A-904, Each

Part Number: BMM-10225

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

Automatic Transmission Shift Kits, Transmission Reprogramming Kits, Dodge, 48RE Transmissions, Gas or Diesel, Kit

Part Number: TRG-48RE-HD2

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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SHIFT KIT Valve Body Repair Kit, 6R60-80 GEN1 SHIFT KIT® Valve Body Repair Kit

Part Number: TRG-SK6R80-A

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Shift Improver, Chrysler, 727, A-904, Each

Part Number: BMM-10226

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

Automatic Transmission Shift Kits, Shift Improver, E4OD, 4R100, Sold as a Kit

Part Number: SOX-E4OD4R100ZIP

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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• $10.00 Summit Bucks

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

Part Number: SOX-6R80L6R100ZI

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping
• $10.00 Summit Bucks

Transmission Upgrade Kit, Transpak, Ford, AOD, Each

Part Number: BMM-40227

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping

Automatic Transmission Shift Kits, Valve Body Repair, AOD, Kit

Part Number: TRG-SKAOD

Not Yet Reviewed

Estimated Ship Date: Tomorrow