Schaffer Products






Colorado Office
  • Toll Free: 800-471-7701
  • Fax: 515-254-1656

Allison Transmission Controller

Diagnose Allison as easily as a common car!



Schaffer Allison Transmission Controller

A new shifter designed for diagnosing Allison transmissions is available exclusively from SuperFlow Technologies Group!

  • LEDs indicate shortened circuits—the wire color pinpoints those circuits.
  • Pulses all solenoids with variable duty cycle.
Controller provides 5 amperage settings to each solenoid for variable load operation.

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