Shift Improver Kit for 71-77 TFA727 and TFA904 with V8 Engine

Shift Improver Kit

PART# 10225

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Fits Chrysler, Dodge, Plymouth with Automatic Transmission, 71-77 with TF A-727 (All), 71-77 with TF A-904 (8 Cyl)


This B&M Shift Improver kit fits all 1971-1977 Chrysler, Dodge and Plymouth TF727 transmissions with 6 cyl and V8 engines, along with A-904 transmissions with V-8 engines. This kit recalibrates your automatic transmission for optimum performance, extended life by eliminating shift overlap and excess wear on clutches & bands due to slippage. You get two modes of performance to select from: Stage 1 Heavy Duty, or Stage 2 Street/Strip. Stage 1 gives firm positive shifts without loss of driver comfort for improved shifting performance in all street vehicles. Street/Strip is for high performance street use or for competitive events for the enthusiast who wants the hardest hitting, quickest possible shifts. All you need are basic tools, the included installation instructions and in the space of an afternoon you can turn your transmission into a B&M-tuned unit! Ask the thousands of satisfied customers that have installed one in their transmissions!


  • Easy to Install
  • Eliminates Shift Overlap
  • Provides Firm Positive Shifts
  • Two kits In One - Heavy Duty or Street/Strip


Automotive Item GradeHigh Performance
California Proposition 65 Chemical NameCadmium and cadmium compounds
California Proposition 65 RequiredYes
Emission Code5
Gasket IncludedYes
Instructions IncludedYes
Product TypeAutomatic Transmission Valve Body Kit
Part Number10225


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

In The Box

In The Box

  • Gaskets
  • Seals
  • Drill Bit and Fluid Separators

Tech Resources

Fits Chrysler, Dodge, Plymouth with Automatic Transmission, 71-77 with TF A-727 (All), 71-77 with TF A-904 (8 Cyl)



    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.