Talk to the experts. Call 800.979.0122, 7am-10pm CST, everyday.

REWARDS

GIFT CARDS

DEALS

TRACK ORDER

HELP CENTER

My

List

Menu

Shop

Garage

Cart

Account

Rebate

B&M 10228 Transpak Auto Trans Shift Improver Kit, TF A727/A904

Rebate

B&M 10228 Transpak Auto Trans Shift Improver Kit, TF A727/A904
B&M

|

#20010228

B&M 10228 Transpak Auto Trans Shift Improver Kit, TF A727/A904

$204.95

/each

Factory Shipped

$230.95

Save $26.00


Quantity

Need Help? Call to Order

Add to a list

Share

Select a vehicle to verify Fitment

Select Vehicle

Product Summary

904, Torqueflite 727

    Rebates Available

    See rebate details
    See more details

    Key Specs

    MFG. Part #10228
    BrandB&M
    See more specs

    Need To Know

    Need help?

    855.313.9176
    View the Help Center

    Quick and Easy Returns

    Return Policy

    B&M 10228 Details

    Recalibrate your automatic transmission for optimum performance! Select the mode that best suits your application Improves transmission life Transmission removal not required APPLICATION: 1966 to 1977 Chrysler, Dodge, Plymouth TF A-727 and A-904 The next step up from the Shift Improver Kit is the Transpak. It has all the features in the Shift Improver Kit plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 and Chrysler Torqueflite only). Most stock automatic transmissions won't downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you're in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you've got a modified engine, and you want additional RPMs, or you're towing a trailer or driving heavy loads downhill. Stage 1. Heavy Duty For street rods, normal passenger vehicles or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort. Normal automatic operation when in Drive. Stage 2. Hi-Performance Street For full performance street use. Essentially the same as Heavy Duty mode except shift is much quicker. Retain full automatic features and standard shift points with selector in Drive.

    • Recalibrates automatic transmissions
    • Optimize performance
    • Stage 1 and Stage 2 components included
    • Improves transmission life

    Application

    Fits 1966 to 1977 Chrysler, Dodge, Plymouth Torqueflite A727 and A904 automatic transmissions

    Charts

    Rebates

    Holley IRS Sale 2026

    Save 10% instantly on select products across the Holley family of performance brands during the annual Holley I.R.S.Tax Sale. Instant rebate period runs from February 17, 2026 through March 29, 2026.

    B&M 10228 Specifications

    KEY SPECS
    MFG. Part #10228
    BrandB&M
    GENERAL
    GTIN Code019695102289
    Gaskets IncludedYes

    Fitment

                                                                                                                                      Customer Impersonation Script