Automatic Transmission Shift Kits

Shift Improver, Chevy, TH350, Each

Part Number: BMM-30262

4.72 out of 5 stars ( 25 )

Estimated Ship Date: Monday 8/25/2025

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

Part Number: BMM-30228

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Monday 8/25/2025

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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: Monday 8/25/2025

Shift Kit, Transpak, Chrysler, 727, A-904, Each

Part Number: BMM-10228

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

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

Part Number: BMM-70235

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

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

Part Number: BMM-50262

2.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 8/25/2025

Transmission Upgrade Kit, Transpak, Ford, AOD, Each

Part Number: BMM-40227

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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Transmission Upgrade Kit, Shift Improver, GM, TH400, 3L80, Each

Part Number: BMM-20261

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/25/2025

Transmission Upgrade Kit, Transpak, Ford, C-4, Each

Part Number: BMM-50229

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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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: Monday 8/25/2025

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

Part Number: BMM-35265

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

Transmission Upgrade Kit, Transpak, Ford, C-6, Each

Part Number: BMM-40228

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping