Automatic Transmission Shift Kits

Shift Improver, Chevy, TH350, Each

Part Number: BMM-30262

4.72 out of 5 stars ( 25 )

Estimated Ship Date: Today

Transmission Upgrade Kit, Transpak, GM, TH350, TH375B, M38, Each

Part Number: BMM-30228

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Transmission Upgrade Kit, Shift Improver, GM, 700R4, 4L60, Each

Part Number: BMM-70239

4.65 out of 5 stars ( 20 )

Estimated Ship Date: Today

Transmission Upgrade Kit, Transpak, GM, 700R4, 4L60, Each

Part Number: BMM-70235

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Conversion Kit, 1968-70 Chevelle 3-Spd Automatic Reverse Valve Body Factory Shifter Conversion Kit TH350, TH400, features Slap-Shift function

Part Number: SIW-C350-2RVB

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Conversion Kit, 1972-76 C3 Corvette 6 or 8-Spd Automatic Factory Shifter Conversion Kit for 6L80E, 6L90E, 8L90E

Part Number: SIW-SC2402-6

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Conversion Kit, 1968-69 Impala 4-Spd Automatic Reverse Valve Body Factory Shifter Conversion Kit 4L80E, 4L85E

Part Number: SIW-SC225-RVB

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Conversion Kit, 1968-70 Chevelle 4-Spd Automatic Reverse Valve Body Factory Shifter Conversion Kit 4L80E, 4L85E

Part Number: SIW-SC2252-RVB

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Conversion Kit, 1971-72 Chevelle 4-Spd Automatic Reverse Valve Body Factory Shifter Conversion Kit 4L80E, 4L85E

Part Number: SIW-SC2253-RVB

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Conversion Kit, 1968-70 Chevelle 4-Spd Auto Reverse Valve Body Factory Shifter Conversion Kit, features Slap-Shift

Part Number: SIW-SC2242-RVB

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Conversion Kit, 1971-72 Chevelle 4-Spd Auto Reverse Valve Body Factory Shifter Conversion Kit, features Slap-Shift

Part Number: SIW-SC2243-RVB

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Conversion Kit, 1971-72 Chevelle 3-Spd Automatic Reverse Valve Body Factory Shifter Conversion Kit TH350, TH400, features Slap-Shift function

Part Number: SIW-C350-3RVB

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Conversion Kit, 1968-69 Impala 3-Spd Automatic Reverse Valve Body Factory Shifter Conversion Kit TH350, TH400, features Slap-Shift function

Part Number: SIW-C350-RVB

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Conversion Kit, 1968-69 Impala 4-Spd Auto Reverse Valve Body Factory Shifter Conversion Kit, features Slap-Shift

Part Number: SIW-SC224-RVB

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Conversion Kit, 1968-71 C3 Corvette 6 or 8-Spd Automatic Factory Shifter Conversion Kit for 6L80E, 6L90E, 8L90E

Part Number: SIW-SC2401-6

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Conversion Kit, 1977-82 C3 Corvette 6 or 8-Spd Automatic Factory Shifter Conversion Kit for 6L80E, 6L90E, 8L90E

Part Number: SIW-SC2403-6

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Estimated Ship Date: Nov 24, 2025 if ordered today

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