B&M Shift Improver Kits

Shift Improver, Chevy, TH350, Each

Part Number: BMM-30262

4.73 out of 5 stars ( 26 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Transmission Upgrade Kit, Shift Improver, GM, TH400, TH375, M40, Each

Part Number: BMM-20260

4.81 out of 5 stars ( 16 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Transmission Upgrade Kit, Shift Improver, Ford, C-6, Each

Part Number: BMM-40262

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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

Part Number: BMM-50262

2.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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

Part Number: BMM-10226

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Mar 9, 2026 if ordered today

• Drop Ship
• Special Order